... 3.Excellent serviceSheet Metal Manufacturing service 1.material: carbon steel(cold rolled steel sheet, ... Table ClassificationSteel metal partProductDescriptionPlace of Origin: Shanghai, China (Mainland)Material: Carbon steel; Stainless steel,aluminum alloy; Brassalloy ... hot-dip, and polishing,etc.CompanyAdvantageMainly Customer: China Unicom, China Mobile Communications, tongjiuniversity, etc.More than ...