... +/-0.001mm. 3.OEM is available. inner container/metal inner container/stainless steel inner container/storage inner container.1: Material range: Stainless steel, brass, copper ... of friction power presses,16 set of hydraulic presses ect.4: Surface finish: Polishing, electropolishing, anodizing, brushing, plating, painting, ... hardware parts.7:Our strength are MIG/TIG welding. metal inner container