1. material : carbon steel,stainless steel,spring steel 2. surface: zinc,black,dacromet,geomet 3. completion : pressing Quality ... Assurance :1. We have our own processing plant 2. Product storage 3.Hardness tester , salt spray test machine4. ... hands of customers. Package Our display cabinets 1. Item name: clip from china2. Material: stainless steel, iron, copper, aluminum, carbon ...