مهتمة تصل إلى أكثر من 2,000 المعادن والمواد في جميع أنحاء العالم؟
شركة 101 - 150 ل 2352 عرض
شركةالموقع
chennai, Tamil Nadu, الهند
التخصصات
  • مصنع
chennai, Tamil Nadu
الهند
Willis, Texas, الولايات المتحدة الامريكية
التخصصات
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
  • ماكينات مستعملة تجار / سماسرة
Throughout the years the company rebuilt and rented refurbished weld positioning equipment and then ultimately began the manufacturing of new equipment. With over 50 years of rebuilding weld positioning equipment, the company used this experience to develop and...
Throughout the years the company rebuilt and rented refurbished weld positioning equipment and then ultimately began the manufacturing of new equipment. With over 50 years of rebuilding weld positioning equipment, the company used this experience to develop and...
Willis, Texas
الولايات المتحدة الامريكية
xiamen, Fujian, الصين
التخصصات
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
  • منشئ الة مخصة
As the most reliable industrial valves supplier in China, Weldon Valves supplies top-notch quality industrial valves including gate valves, globe valves, safty valves, ball valves and check valves in customized material, type, size, class, standard.
As the most reliable industrial valves supplier in China, Weldon Valves supplies top-notch quality industrial valves including gate valves, globe valves, safty valves, ball valves and check valves in customized material, type, size, class, standard.
xiamen, Fujian
الصين
Florence, Kentucky, الولايات المتحدة الامريكية
التخصصات
  • اعاده بناء&اعاده تصحيح
  • خدمه وصيانه
  • خدمات هندسيه
  • مصنع
  • مركز خدمه المعادن
Welding Alloys manufactures the widest range of tubular welding wire in the world - low, mid and high alloy hardfacing, mild steel fabrication, stainless steel, nickel base, cobalt base, all in diameters ranging from 0.9mm to 5mm, using our own manufacturing...
Welding Alloys manufactures the widest range of tubular welding wire in the world - low, mid and high alloy hardfacing, mild steel fabrication, stainless steel, nickel base, cobalt base, all in diameters ranging from 0.9mm to 5mm, using our own manufacturing...
Florence, Kentucky
الولايات المتحدة الامريكية
Kings Mountain, North Carolina, الولايات المتحدة الامريكية
التخصصات
  • مصنع
Kings Mountain, North Carolina
الولايات المتحدة الامريكية
Ząbki, بولندا
التخصصات
  • اعاده بناء&اعاده تصحيح
  • خدمات هندسيه
  • مصنع
  • مصنع عدد و اكسسوارات
  • مصنع ماكينات جديدة - المركز الرئيسي
We specialise in building single- and multi-point welding machines, automatic production lines for fencing panels and reinforcing constructions, wire straighteners, specialised welding machines and presses for stiffening fencing panels. We also make specialised devices...
We specialise in building single- and multi-point welding machines, automatic production lines for fencing panels and reinforcing constructions, wire straighteners, specialised welding machines and presses for stiffening fencing panels. We also make specialised devices...
Ząbki
بولندا
Lima, بيرو
التخصصات
  • مصنع
Lima
بيرو
Apodaca, Nuevo Leon, المكسيك
التخصصات
  • مصنع
Apodaca, Nuevo Leon
المكسيك
Weifang, Shandong, الصين
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
  • مصنع عدد و اكسسوارات
  • مصنع ماكينات جديدة - مكتب مبيعات
Weifang, Shandong
الصين
Weifang, Shandong, الصين
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
Weifang Shengao Machinery Co.,Ltd was built in 2006,mainly undertake the OEM Casting Parts,OEM Forging Parts,OEM Machining Parts,Manhole Cover,OEM Pump/impeller/valve,OEM Flange,OEM Shift fork/brake disc,Machining Tool,etc.  Over the years,company adhere to the guideline...
  • اجزاء&مكونات-مصنع
  • مصنع
Weifang Shengao Machinery Co.,Ltd was built in 2006,mainly undertake the OEM Casting Parts,OEM Forging Parts,OEM Machining Parts,Manhole Cover,OEM Pump/impeller/valve,OEM Flange,OEM Shift fork/brake disc,Machining Tool,etc.  Over the years,company adhere to the guideline...
Weifang, Shandong
الصين
Shenzhen, الصين
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع بالعقد / بالشغلة
we are manufacturer in china, main products include, (star)ball screw assembly, linear ball rail system, miniature ball rail system, x-y tables, ball spindles, slide spindles and slide guide. and we’d like to start business with your company if you are interesting...
  • اجزاء&مكونات-مصنع
  • مصنع بالعقد / بالشغلة
we are manufacturer in china, main products include, (star)ball screw assembly, linear ball rail system, miniature ball rail system, x-y tables, ball spindles, slide spindles and slide guide. and we’d like to start business with your company if you are interesting...
Shenzhen
الصين
Zapopan, Jalisco, المكسيك
التخصصات
  • مصنع
  • مصنع بالعقد / بالشغلة
Corte por Chorro de Agua
  • مصنع
  • مصنع بالعقد / بالشغلة
Corte por Chorro de Agua
Zapopan, Jalisco
المكسيك
cairo, مصر
التخصصات
  • مصنع
  • ماكينات مستعملة تجار / سماسرة
  • مصنع
  • ماكينات مستعملة تجار / سماسرة
cairo
مصر
Tulsa, Oklahoma, الولايات المتحدة الامريكية
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
  • مصنع بالعقد / بالشغلة
Heavy steel fabricating,forming and rolling, custom plate welding or custom plate rolling - Custom Plate Welding facilities in Oklahoma, Texas and California - steel sourcing, custom steel welding for economizers, boilers, pressure vessels, pipe mill, weld x-ray, PVQ,...
Heavy steel fabricating,forming and rolling, custom plate welding or custom plate rolling - Custom Plate Welding facilities in Oklahoma, Texas and California - steel sourcing, custom steel welding for economizers, boilers, pressure vessels, pipe mill, weld x-ray, PVQ,...
Tulsa, Oklahoma
الولايات المتحدة الامريكية
Dalian, Liaoning, الصين
التخصصات
  • مصنع
  • مصنع عدد و اكسسوارات
Wafangdian Kaiwei Fine Bearing Manufacturing Co., Ltd, established in 1993, lies in the birthplace of the China bearing – Wafangdian Dalian, City, China, which is known as the hometown and cradle of the China bearing. We are a professional factory producing “0-9” type of...
  • مصنع
  • مصنع عدد و اكسسوارات
Wafangdian Kaiwei Fine Bearing Manufacturing Co., Ltd, established in 1993, lies in the birthplace of the China bearing – Wafangdian Dalian, City, China, which is known as the hometown and cradle of the China bearing. We are a professional factory producing “0-9” type of...
Dalian, Liaoning
الصين
Monterrey, Nuevo Leon, المكسيك
التخصصات
  • مصنع
  • مصنع بالعقد / بالشغلة
Con más de 30 años en el mercado, VULKAN INOX es uno de los principales LÍDERES MUNDIALES en la fabricación y uso de Granalla Inoxidable. Para atender la creciente demanda técnica y comercial en todo México de nuestros productos, se creó la filial VULKAN INOX de México...
  • مصنع
  • مصنع بالعقد / بالشغلة
Con más de 30 años en el mercado, VULKAN INOX es uno de los principales LÍDERES MUNDIALES en la fabricación y uso de Granalla Inoxidable. Para atender la creciente demanda técnica y comercial en todo México de nuestros productos, se creó la filial VULKAN INOX de México...
Monterrey, Nuevo Leon
المكسيك
Lipetsk, Lipetsk, الفيدراليه الروسيه
التخصصات
  • اعاده بناء&اعاده تصحيح
  • اجزاء&مكونات-مصنع
  • خدمه وصيانه
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
Russian manufacturer and exporter of high-precision surface grinding machines, finger-jointing lines, wood-working machines, linear rolling bearings, and roller linear guides.
Russian manufacturer and exporter of high-precision surface grinding machines, finger-jointing lines, wood-working machines, linear rolling bearings, and roller linear guides.
Lipetsk, Lipetsk
الفيدراليه الروسيه
Monee, Illinois, الولايات المتحدة الامريكية
التخصصات
  • ادوات&اكسسوارات-موزع
  • اجزاء&مكونات-موزع
  • خدمه وصيانه
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
  • ماكينات مستعملة تجار / سماسرة
  • منشئ الة مخصة
  • وكالة استشاري
Voortman steel fabricating equipment can be found throughout the world, in order to deliver these optimum service levels we have subsidiaries in: United Kingdom, Australia, USA, The Netherlands, Germany, Poland, Portugal and Russia. Due to this we are always close to our...
Voortman steel fabricating equipment can be found throughout the world, in order to deliver these optimum service levels we have subsidiaries in: United Kingdom, Australia, USA, The Netherlands, Germany, Poland, Portugal and Russia. Due to this we are always close to our...
Monee, Illinois
الولايات المتحدة الامريكية
Velikie Luki, Pskovskaya obl., Pskov, الفيدراليه الروسيه
التخصصات
  • اعاده بناء&اعاده تصحيح
  • اجزاء&مكونات-مصنع
  • خدمه وصيانه
  • مصنع
  • مصنع بالعقد / بالشغلة
  • مصنع ماكينات جديدة - المركز الرئيسي
Lifting equipment, cargo trailed equipment, agricultural machinery, small-scale machinery, metalwork, manufacture, assembling, and repairs. OAO Velikoluksky Pilot Machinery Plant has been manufacturing lifting, mechanical, and automation equipment for warehouses for...
Lifting equipment, cargo trailed equipment, agricultural machinery, small-scale machinery, metalwork, manufacture, assembling, and repairs. OAO Velikoluksky Pilot Machinery Plant has been manufacturing lifting, mechanical, and automation equipment for warehouses for...
Velikie Luki, Pskovskaya obl., Pskov
الفيدراليه الروسيه
Volzhskiy, Volgogradskaya obl., Volgograd, الفيدراليه الروسيه
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
Volzhskiy Abrasive Works Plant is ranked as leading Russian manufacturer in production of grinding materials and abrasive tool. The company produces silicon carbide products as refractory fractions, electro technical fractions, metallurgical fractions, FEPA F, FEPA P,...
Volzhskiy Abrasive Works Plant is ranked as leading Russian manufacturer in production of grinding materials and abrasive tool. The company produces silicon carbide products as refractory fractions, electro technical fractions, metallurgical fractions, FEPA F, FEPA P,...
Volzhskiy, Volgogradskaya obl., Volgograd
الفيدراليه الروسيه
Miramar, V N GAIA, البرتغال
التخصصات
  • مصنع
  • مصنع
Miramar, V N GAIA
البرتغال
Nizhniy Novgorod, الفيدراليه الروسيه
التخصصات
  • اجزاء&مكونات-مصنع
  • خدمات هندسيه
  • مصنع
  • مركز خدمه المعادن
Industrial production of metallurgical blanks. Casting, forgings, die forgings.
Industrial production of metallurgical blanks. Casting, forgings, die forgings.
Nizhniy Novgorod
الفيدراليه الروسيه
Moscow, Moscow City, الفيدراليه الروسيه
التخصصات
  • ادوات&اكسسوارات-موزع
  • مصنع
  • مصنع عدد و اكسسوارات
Manufacturer of milling tools, turning tools, hole-making tools, wood-cutting tools, toolset for machines with programmed numeric control, bench-work and installation tools, tools with wear-resistant diamond-like coatings. Supplier of carbide blank parts for...
Manufacturer of milling tools, turning tools, hole-making tools, wood-cutting tools, toolset for machines with programmed numeric control, bench-work and installation tools, tools with wear-resistant diamond-like coatings. Supplier of carbide blank parts for...
Moscow, Moscow City
الفيدراليه الروسيه
Moscow, Moscow City, الفيدراليه الروسيه
التخصصات
  • مصنع
  • مصنع عدد و اكسسوارات
Manufacturer of diamond grinding tools, diamond pastes and tools for finishing work, tools for cutting, tools for turning, tools for smoothing, tools for measuring and control devices, as well as scientific and technical services.
  • مصنع
  • مصنع عدد و اكسسوارات
Manufacturer of diamond grinding tools, diamond pastes and tools for finishing work, tools for cutting, tools for turning, tools for smoothing, tools for measuring and control devices, as well as scientific and technical services.
Moscow, Moscow City
الفيدراليه الروسيه
tel aviv, إسرائيل
التخصصات
  • ادوات&اكسسوارات-موزع
  • مصنع
  • مصنع بالعقد / بالشغلة
tel aviv
إسرائيل
İstanbul, Istanbul, تركيا
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
  • مصنع بالعقد / بالشغلة
VİTAŞ FASTENERS SCHRAUBE BOLZEN EUROPE HIRD. SAN.VE TİC. A.Ş. Vitaş A.Ş. 1969 yılından beri vida, civata ve her türlü özel bağlantı elemanları imalatı yapmaktadır. Başta inşaat,beyaz eşya ,otomotiv, mobilya ve çeşitli endüstriyel tesislere bağlantı elemanı kullanan...
VİTAŞ FASTENERS SCHRAUBE BOLZEN EUROPE HIRD. SAN.VE TİC. A.Ş. Vitaş A.Ş. 1969 yılından beri vida, civata ve her türlü özel bağlantı elemanları imalatı yapmaktadır. Başta inşaat,beyaz eşya ,otomotiv, mobilya ve çeşitli endüstriyel tesislere bağlantı elemanı kullanan...
İstanbul, Istanbul
تركيا
McKeesport, Pennsylvania, الولايات المتحدة الامريكية
التخصصات
  • مصنع
manufacture cemented tungsten carbide for the die and wear industry
  • مصنع
manufacture cemented tungsten carbide for the die and wear industry
McKeesport, Pennsylvania
الولايات المتحدة الامريكية
JALANDHAR, Punjab, الهند
التخصصات
  • مصنع
  • مثمن
pipe mils
  • مصنع
  • مثمن
pipe mils
JALANDHAR, Punjab
الهند
Faridabad, Haryana, الهند
التخصصات
  • مصنع
Manufacturers of die,fixture,all type of sheet metal & fabrication works.
  • مصنع
Manufacturers of die,fixture,all type of sheet metal & fabrication works.
Faridabad, Haryana
الهند
Thane, الهند
التخصصات
  • مصنع
stainless steel products, steel fasteners, bright bars, flats, channels, hexagon, flanges, forged bars Forged Products & Equipment
  • مصنع
stainless steel products, steel fasteners, bright bars, flats, channels, hexagon, flanges, forged bars Forged Products & Equipment
Thane
الهند
MUMBAI, Maharashtra, الهند
التخصصات
  • مصنع
REGD. FERROUS SULPHIDE / FERRO SULPHER ( IRON SULPHIDE ) DEAR SIR, WE ARE GLAD TO INTRODUCE OURSELVES AS A LEADING MANUFACTURER & EXPORTER, WE ACHIEVE THE QUALITY & SUCCESS IN DOMESTIC AS WELL AS OVERSEAS MARKET IN ABOVE PRODUCTS. WE ARE REGULARLY SUPPLYING THE...
  • مصنع
REGD. FERROUS SULPHIDE / FERRO SULPHER ( IRON SULPHIDE ) DEAR SIR, WE ARE GLAD TO INTRODUCE OURSELVES AS A LEADING MANUFACTURER & EXPORTER, WE ACHIEVE THE QUALITY & SUCCESS IN DOMESTIC AS WELL AS OVERSEAS MARKET IN ABOVE PRODUCTS. WE ARE REGULARLY SUPPLYING THE...
MUMBAI, Maharashtra
الهند
Piedras Negras, Coahuila de Zaragoza, المكسيك
Perfiles, Angulos, Soleras, Placas de Aluminio Puertas y Ventanas de Aluminio
Perfiles, Angulos, Soleras, Placas de Aluminio Puertas y Ventanas de Aluminio
Piedras Negras, Coahuila de Zaragoza
المكسيك
Bangalore, Karnataka, الهند
التخصصات
  • خدمات هندسيه
  • مصنع
Manufacturers of press components,sheet metal fabrication & furniture items.
  • خدمات هندسيه
  • مصنع
Manufacturers of press components,sheet metal fabrication & furniture items.
Bangalore, Karnataka
الهند
KING OF PRUSSIA, Pennsylvania, الولايات المتحدة الامريكية
التخصصات
  • مصنع
VIMCO IS A SUPPLIER OF POURDED IN PLACE CONCRETE PRODUCTS AND FORMS AND A MANUFACTURER OF WIRE BAR SUPPORTS AND FORMIING HARDWARE IN ACCORDANCE WITH CRSI SPECIFICATIONS.
  • مصنع
VIMCO IS A SUPPLIER OF POURDED IN PLACE CONCRETE PRODUCTS AND FORMS AND A MANUFACTURER OF WIRE BAR SUPPORTS AND FORMIING HARDWARE IN ACCORDANCE WITH CRSI SPECIFICATIONS.
KING OF PRUSSIA, Pennsylvania
الولايات المتحدة الامريكية
Rajkot, Gujarat, الهند
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
we take this opportunity to introduce ourselves as an exporter of cast & forged pipe fittings flanges engaged in this business since last 3 years & having very good experience in this field. we have a full fledged & well equipped machine shop, managed by well qualified &...
  • اجزاء&مكونات-مصنع
  • مصنع
we take this opportunity to introduce ourselves as an exporter of cast & forged pipe fittings flanges engaged in this business since last 3 years & having very good experience in this field. we have a full fledged & well equipped machine shop, managed by well qualified &...
Rajkot, Gujarat
الهند
Jamnagar, Gujarat, الهند
التخصصات
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
  • منشئ الة مخصة
Jamnagar, Gujarat
الهند
Roseville, Michigan, الولايات المتحدة الامريكية
التخصصات
  • مصنع
Manufacture
  • مصنع
Manufacture
Roseville, Michigan
الولايات المتحدة الامريكية
Winter Haven, Florida, الولايات المتحدة الامريكية
التخصصات
  • مصنع
national sales office for commercial equipment manufactuer.
  • مصنع
national sales office for commercial equipment manufactuer.
Winter Haven, Florida
الولايات المتحدة الامريكية
San Nicolás de los Garza, Nuevo Leon, المكسيك
التخصصات
  • مصنع
Planchón Comercial, Placa, Lámina, Perfiles Estructurales.
  • مصنع
Planchón Comercial, Placa, Lámina, Perfiles Estructurales.
San Nicolás de los Garza, Nuevo Leon
المكسيك
Ajmer, Rajasthan, الهند
التخصصات
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
We are pleased to introduced our salves as a Reputed for years and Leading supplier and Exporter of Cranes in India.Company is a leading manufacturer of a variety of Industrial Cranes that conform to global standards. These cranes are precision-engineered equipments that...
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
We are pleased to introduced our salves as a Reputed for years and Leading supplier and Exporter of Cranes in India.Company is a leading manufacturer of a variety of Industrial Cranes that conform to global standards. These cranes are precision-engineered equipments that...
Ajmer, Rajasthan
الهند
Torreón, Coahuila de Zaragoza, المكسيك
التخصصات
  • مصنع
Aceros Comerciales, Especiales e Inoxidables.
  • مصنع
Aceros Comerciales, Especiales e Inoxidables.
Torreón, Coahuila de Zaragoza
المكسيك
Celaya, Guanajuato, المكسيك
التخصصات
  • مصنع
VBT industrial es suministrador industrial que destaca por su dinamismo, por evolucionar anticipándose al desarrollo del mercado y por ser capaz de satisfacer a todos sus clientes. Cuenta con cuatro líneas de negocio diferenciadas: Cinta metálica, Alambre ferroso y no...
  • مصنع
VBT industrial es suministrador industrial que destaca por su dinamismo, por evolucionar anticipándose al desarrollo del mercado y por ser capaz de satisfacer a todos sus clientes. Cuenta con cuatro líneas de negocio diferenciadas: Cinta metálica, Alambre ferroso y no...
Celaya, Guanajuato
المكسيك
Tlalnepantla de Baz, Mexico, المكسيك
التخصصات
  • اجزاء&مكونات-مصنع
  • مصنع
  • مركز خدمه المعادن
Comercializadora de Acero Inoxidable.
Comercializadora de Acero Inoxidable.
Tlalnepantla de Baz, Mexico
المكسيك
Mezotur, المجر
التخصصات
  • مصنع
Mezotur
المجر
Bangalore, Karnataka, الهند
التخصصات
  • مصنع
Bangalore, Karnataka
الهند
Pleven, Pleven, بلغاريا
التخصصات
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
  • منشئ الة مخصة
Founded in 1914, VAPTECH has evolved into a greatly appreciated global supplier of highest quality innovative products, services and solutions in the Hydropower, Metal Forming and Biomass industries. Since 1914, VAPTECH’s philosophy is uncompromisingly focused on:...
Founded in 1914, VAPTECH has evolved into a greatly appreciated global supplier of highest quality innovative products, services and solutions in the Hydropower, Metal Forming and Biomass industries. Since 1914, VAPTECH’s philosophy is uncompromisingly focused on:...
Pleven, Pleven
بلغاريا
Lincolnton, North Carolina, الولايات المتحدة الامريكية
التخصصات
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
Wet Blasting Equipment manufacturer and Abrasive sales to both business and consumer. We pride ourselves on the quality of equipment while keeping costs down to a minimum.
  • مصنع
  • مصنع ماكينات جديدة - المركز الرئيسي
Wet Blasting Equipment manufacturer and Abrasive sales to both business and consumer. We pride ourselves on the quality of equipment while keeping costs down to a minimum.
Lincolnton, North Carolina
الولايات المتحدة الامريكية
Houston, Texas, الولايات المتحدة الامريكية
التخصصات
  • اجزاء&مكونات-مصنع
  • اجزاء&مكونات-موزع
  • مصنع
ValvTechnologies is Houston's premier manufacturer and supplier of high-quality valves. Each valve produced by ValvTechnologies comes with our unprecedented Zero-Leakage Guarantee. ValvTechnologies produces ball valves, seat supported ball valves, trunion ball valves,...
ValvTechnologies is Houston's premier manufacturer and supplier of high-quality valves. Each valve produced by ValvTechnologies comes with our unprecedented Zero-Leakage Guarantee. ValvTechnologies produces ball valves, seat supported ball valves, trunion ball valves,...
Houston, Texas
الولايات المتحدة الامريكية
WENZHOU, الصين
التخصصات
  • مصنع
we are a professional industrial valves manufacturer from china mainland: we manufacture and export many kinds of valves: products: *ball valves: full welded ball valve, top-entry ball valve, side-entry ball valve, *gate valves: slam gate , wedge gate, *globe...
  • مصنع
we are a professional industrial valves manufacturer from china mainland: we manufacture and export many kinds of valves: products: *ball valves: full welded ball valve, top-entry ball valve, side-entry ball valve, *gate valves: slam gate , wedge gate, *globe...
WENZHOU
الصين
Jalandhar, Punjab, الهند
التخصصات
  • مصنع
An ISO 9001:2000 Co. with Two B.I.S. Licenses and IBR Certification from Director of Boilers manufacturing Qinn Brand Steam Valves, Boiler Mountings,Butterfly Valves,Marine Valves, Check Valves in Bronze/Gunmetal,Cast Iron,Cast Steel or Stainless Steel
  • مصنع
An ISO 9001:2000 Co. with Two B.I.S. Licenses and IBR Certification from Director of Boilers manufacturing Qinn Brand Steam Valves, Boiler Mountings,Butterfly Valves,Marine Valves, Check Valves in Bronze/Gunmetal,Cast Iron,Cast Steel or Stainless Steel
Jalandhar, Punjab
الهند
مهتمة تصل إلى أكثر من 2,000 المعادن والمواد في جميع أنحاء العالم؟