1. welding part,welding product 2.material: CRS, HRS, Carbon Steel, 3. ... coating 4.Welding technology steel welding Product, powder coating welding part Item Namesteel welding Product, powder coating welding partMaterialIron, carbon steel ... machine, roughness tester, salt spray testing machine, concentricity tester, pin gagues etcPacking:crate, carton, wooden case, pallet according to clients ...