No. 1 purple scrap copper: includes clean, alloy-free, uncoated processing scraps, conductive plates, and copper wires with a diameter greater than 1.6 mm. Clean copper tubes and other pure copper block materials are allowed in the material, with a copper content of 98% (minimum copper content greater than 96%). No burned brittle copper wires are allowed.

No. 2 purple scrap copper: includes mixed pure copper waste, does not contain copper alloy, and has a copper content of 96% (minimum content 94%). It must not contain excessive lead and tin, welded waste copper, excessive oil, steel, non-metallic waste, copper tubes with non-copper joints or copper tubes with residues, burned or insulated copper wires, wool, burned brittle copper wires, soil, etc.

No. 1 purple scrap copper: includes clean, alloy-free, uncoated processing scraps, conductive plates, and copper wires with a diameter greater than 1.6 mm. Clean copper tubes and other pure copper block materials are allowed in the material, with a copper content of 98% (minimum copper content greater than 96%). No burned brittle copper wires are allowed.

No. 2 purple scrap copper: includes mixed pure copper waste, does not contain copper alloy, and has a copper content of 96% (minimum content 94%). It must not contain excessive lead and tin, welded waste copper, excessive oil, steel, non-metallic waste, copper tubes with non-copper joints or copper tubes with residues, burned or insulated copper wires, wool, burned brittle copper wires, soil, etc