... parts as required. DesignAccording to customer's drawing with the format like .dwg/.igs/.stp/. ... yellow passivation, gold passivation, galvanizing, satin, etc.Processing MethodDeep drawing , stamping , punching, bending, CNC spinning, CNC machining, ... milling, drilling, grinding, Arc welding , seamless welding, straight line welding, sandblasting, and assembly.Advantages1. Own factory - we ...