Long Weld - manufacturer, factory, supplier from China

1. Renovation of the detection surface: Spatter, oxide scale, pits and rust on the welding working surface should be removed. The smoothness is generally lower than ▽4. The trimming width of the flaw...

1. Destructive testing (1) Mechanical property experiments include tensile tests, hardness tests, bending tests, fatigue tests, impact tests, etc.; (2) Chemical analysis tests include chemical...

Semi-welded plate heat exchangers are specially provided for heating and cooling of corrosive media. They are widely used in ammonia refrigeration, sulfuric acid, caustic soda, petrochemical,...

1. Electrode arc welding Welding rod arc welding is a process that uses a stable burning arc established between the welding rod and the workpiece to melt the welding rod and the workpiece to obtain...