... 5. well adapted 6.heating fast. saw blade welding machine,saw blade heating equipment,saw blade welding.Application:1. Heat ... wheel, valve, ball pin , Etc. and hardening of large size machine tool guideways and Ductile cast iron.4.Welding, Welding head, lathe ... other dangerous gases on open flame heating production, more in line with the national fire safety regulation.Specification:Model: WH-VI ...