... Modeling embossing Etc. such as steel pipe stretch, elbow, iron wire, steel wire heating make pin, stainless steel products annealing ... . and hardening of large size machine tool guideways and Ductile cast iron.4.Welding, Welding head, lathe tool, reamer, milling cutter, ... drill bits, and stainless steel bottom of the pot, such as the composite of different materials welding, and welding ...