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xi lanh-pit tong-Cylinder-piston-xy lanh Xy lanh Youlike GPB GPU20 25-20 25 30 40 50 75 100 125 150 175, xi lanh-pit tong-Cylinder-piston-xy lanh Xy lanh Youlike GPB GPU32 40-25 40 50 75 100 125 150 175 200, xi lanh-pit tong-Cylinder-piston-xy lanh Xy lanh Youlike GPB GPU50 63-25 40 50 75 100 125 150 175 200