... alloy, stainless steel, tinplate, etc. It depends on your requirement. 5). Surface coating: zinc, silver, copper, black oxide, etc. 6 ... all metal stamping productions.4. Passed ISO9001:2008 certification.5. Have many sets of CNC machines, test equipments. 6. Product complaints ... products, device, machine and so onFile formatsCAD/ PROE/PDFMOQ1000 Pcs, the quantity depends on your product We can design ...