... years experience in metal stamping parts 2 material :aluminum,steel,iron,brass 3 standard:ISO9001:2000 4 OEM/ODM Knights ... drawing,samples or description.1) material: can be steel, brass, stainless steel, plastic, Aluminium…2) surface treatment:kinds of plating ... Black oxid; 3) producing scope: stamping, turning, welding,die-casting, milling…4) usage of products: components for furniture, industry, ...