... . environmental protection 5. well adapted 6.heating fast. saw blade welding machine,saw blade heating equipment,saw blade welding.Application:1. Heat shapingA, All kinds of standard ... wheel, valve, ball pin , Etc. and hardening of large size machine tool guideways and Ductile cast iron.4.Welding, Welding head ... 50-60HZ Oscillation frequency :25-150KHZ Size: 500 × 240 × 450mm saw blade welding machine