... drawing or samples,with high accuracy and surface.... welding part, welded part, metal part, metal product1)Providing a full range of ... ,copper etc.3)process/treatment:cutting ,stamping,perforating, bending, welding,plating,powder coating,assembling,4)High precision metal processing: ... Large-tonnage 500T,315T presses machines,CNC hydraulic,CNC bending presses etc.6)Standard/criteria:In compliance with ...