TX-15B(Long Version) Automatic High Speed 1-Die 2-Blow Cold Heading Nut Bolt Screw Making Machines Price, View nut bolt screw making machines, TX Product Details from Dongguan Taishin Metal Products Factory on Alibaba.com

…needed: (1). Pull the coarse line to the line patch needed. (Wire drawing machine) (2). Adjust, produce, and form the head of screw on the heading machine. (Screw heading machine) (3). Grind tooth on…