... Copper Alloy Nuts 2.Apply:machine parts 3.surface roughness:Ra0.8-Ra6.3 4.Tecnic:blanking 5.ISO9001 OEM Service Blanking Copper Alloy ... Nuts Copper Nuts Specifications: Application:Shell equipment accessories ... Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Aluminum, Aluminum alloy etc.StandardISO, GB, ASTM, DIN, JISEquipmentmelting ...