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xi lanh-pit tong-Cylinder-piston-xy lanh Xi lanh Xi lanh tự do DMM20-5-10-15-20-25-30-40-50-PA-S2, xi lanh-pit tong-Cylinder-piston-xy lanh Xi lanh Xi lanh tự do DMM32-5-10-15-20-25-30-40-50-PA-S2, xi lanh-pit tong-Cylinder-piston-xy lanh Xi lanh Xi lanh tự do DMM6-5-10-15-20-25-30-40-50-APA-S2