Bazibaza comments :
a few pictures to show the process
Jiangsu Xinzan Mould Machine Co., Ltd is the wholly-owned subsidiary of Taiwan Sheen Tzar Co., Ltd. Established in 1981, Taiwan Sheen Tzar Co., Ltd has been working on the R&D, design and manufacture of high-speed self-drilling screw forming machines and dies. In order to expand production, Taiwan Sheen Tzar set up subsidiary Jiangsu Xinzan Mould Machine Co., Ltd which not only manufacture self-drilling screw forming machines and dies, but also heading machines, thread rolling machines, and point cutting machines. […]
