We are major in manufacturing easily spoiled construcrion machinery undercarriage parts, such as Track roller, Carrier roller Sprocket, Idler, Track chain, U-bolt & nut, link-bucket, link rod, spring, pin & bushi-ng, shaft, high-strength track shoe for different kinds of excavator, bulldozer and drill, with a complete spe-cification for KOMATSU, CATERRILLER, Hitachi, KOBELCO, SUMITOMO, KATO, HYUNDAI, DAEWOO.