When the worker actually cuts the pipe, he is wrong.

The seemingly smooth pipeline, the stress is still very large, the worker wave of operation is very slippery, and finally take off ejection, good people are okay, safety first. 铜焊丝,Copper Welding Rods,铝焊丝,aluminium welding wire,镍焊条,Nickel electrode,药皮焊条,Flux Coated Brazing Welding Rods