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xi lanh-pit tong-Cylinder-piston-xy lanh CHELIC khí xi lanh đa NU10-NU10-N10x4x6x8x10x15x20-B-SG2, xi lanh-pit tong-Cylinder-piston-xy lanh CHELIC khí xi lanh đa NU10-NU8-NU6x4x6x8x10x15x20-B-SG2, xi lanh-pit tong-Cylinder-piston-xy lanh CHELIC khí xi lanh đa NU12-NU12-N12x4x6x8x10x15x20-B-SG2