... : double metal cutting tools; available to the market: a continuous drive friction welding machine: C25, C50, C100, C200, C250 , C320, C500, C630 ... , C800, C1200 b, inertial friction welding machine: CG63 c may, in accordance with the specific requirements of ... 3, increased computer closure loop control system). Anzhong Friction Welding machine