We produce series of Oil Cylinder for Hitachi, caterpillar, Daewoo, komatsu, kobelco, etc. by forging. We produce series of Oil Cylinder for Hitachi, caterpillar, Daewoo, komatsu, kobelco,Hyundai, Mitsubishi, Samsung Volvo, sumitomo, kato, etc. by forging. Please inquiry us by model, description with quantity.specification of cylinder diameter:φ40-φ400length can be reach to 3 metres material of ...