Established in 1981, Sheen Tzar Co., Ltd specializes in R&D and manufacturing of High-Speed Self Drilling Screw Forming Machines and Dies. We have both factory in Taiwan & Jingjiang city in Jiangsu Province of China, which not only manufactures Self Drilling Screw Forming machines and Dies, but also R&D and production of Heading Machine, Thread Rolling Machines, Double-cutter Slotting Machines, Screw Point Cutting Machines & Screw Washer Assembly Machine. This plant's wide aeeay of machines and dies will fully satisfy our customers' needs in terms of designs and quantities.