Established in 1981, Sheen Tzar Co. specializes in the R&D and manufacturing of high-speed self-drilling screw forming machines and dies. Having been running and growing steadily in the filed for over two decades. We’ve paid very close attention to the quality of each of our machine and mold products. Constant improvements have made our products best of their kinds. With each and every component meeting highest-level quality standards, our products are thus highly recommended for their superb quality.