1. Scrap steel: including tanggou, scrap steel, ladle bottom, slag steel, billet cutting head, steel cutting head, plate edge, waste billet, waste ingot mould, waste secondary materials, iron oxide scale, etc. It also includes scrap steel, scrap iron, scrap steel, pouring riser, waste cast steel, waste cast iron and so on. In addition, waste machine tools, waste boilers, waste metallurgical equipment, waste mine equipment, waste chemical equipment, waste textile equipment, waste oil extraction equipment and waste petrochemical equipment also belong to the category of waste steel.
2. Waste alloy steel: including various brands of alloys, cutting heads, scraps and scraps of alloy steel; Waste alloy steel parts in mechanical equipment; Scrap alloy parts in engines; All kinds of waste tools: waste milling cutter, waste broach, waste gear shaper cutter, waste hob, waste reamer, waste tap, waste die, waste drill, waste die, etc.
3. Scrap non-ferrous metals: including various non-ferrous metal cutting heads, scraps and scraps; Waste non-ferrous metal parts (including alloy parts) in various mechanical equipment; All kinds of waste non-ferrous metal materials: waste wire, waste pipe, waste rod, waste belt, etc. Waste electrical appliances, waste cables, waste wires, all kinds of waste copper enameled wires, waste conductive plates, waste lead batteries, etc.