Supplier of all kinds of excavator bucket, bucket teeth, bucket adapters, side cutters and so on. They all can be used on excavators, loaders and bulldozers applicable for Komatsu, Hitachi, Kobelco, Daewoo and so on.1. With high quality, more competitive price and the short delivery time!2. 531/531-03209 weigh: 3kg/5.4kg/5.4kg Be used in JCB Series.3. Materials: Low carbon steelalloys, it made of iron. Carbon, chromium, manganese and so on4. Process: Soluble glassprocess, casting, heat treament, quenching5. Hardness: HRC46-536. With exnt tensile and elongation.