... protection 5. well adapted 6.heating fast. saw blade welding machine,saw blade heating equipment,saw blade welding.Application:1. Heat ... heating.B, Metal material heating annealing, convenience to stretch. Modeling embossing Etc. such as steel pipe stretch, elbow, iron wire, steel ... , valve, ball pin , Etc. and hardening of large size machine tool guideways and Ductile cast iron.4.Welding, Welding head ...