... have welding machine, cutting machine, bending machine, thread trapping machine, wire-cutting machine.3) Free samples, ... moulds→confirm samples→purchase material→ blanking→ punching→ welding/bending→ forming→surface treatment→ Inspection→ assemble products→Package2) Material ... ( abroad Various tonnage punches, cutting plate machine, bending machines, welding machine, etc). 6) Precision tolerance: ...