... deal in excavator (KOMATSU/ ISUZU/ CAT / HITACHI / HYUNDAI ) piston, cylinder. Our company provides the following products: 1. Dongfeng Cummins Engine ... 6BT,L. 5. Dongfeng Auto cylinder sleeve plants:6BT.6CT.EQ6102,L cylinder sleeves,HOWO cylinder sleeves. 6. Hubei JinZhou ... L and ISL gearing. 7. We also provides Cylinder block,cylinder head,carnk shaft,camshaft,Truck engine part,connecting rod ...