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xi lanh-pit tong-Cylinder-piston-xy lanh Xi lanh QGB32-25 50 75 100 125 150 175 00 225 250 300 350, xi lanh-pit tong-Cylinder-piston-xy lanh Xi lanh QGB40-25 50 75 100 125 150 175 00 225 250 300 350, xi lanh-pit tong-Cylinder-piston-xy lanh Xi lanh QGB50-25 50 75 100 125 150 175 00 225 250 300 350