... stainless steel,Aluminium 2.ISO9001:2000 3.forging and stamping,reliable quality 4.ASTM,DINForged partsStamp ... 1, Material: steel, alloy steel, stainless steel, and other possible materials, with high quality raw material2, Advanced ... and experienced workers.3, Size and design are according to customers’ requirements4, Having obtained international approvals5, Reliable quality control systems ...