1.Material: PVC ALUMINUM 2.Model: 50H 40H 30H 45H 90H 50AS 28AS 140AS 25AS 3.various Coupling for excavator, bulldozer. Coupling for excavator model: KOMATSU, KOBELCO,CATERPILLAR, HITACHI, SUMITOMO, KATO, DAEWOO, HYUNDAI, VOLVO,MITSUBISHI.We are committed to providing high quality and competitive product and supply the various coupling for Excavator, Bulldozer. If there is any one item you will ...