... and mechinery HRPC brand double acting hydraulic stell oil cylinders 1)multi type design2) red/blue color3) carbon steel material4)used ... steel ball valve, carbon steel ball valve, oil cylinders, multi-stage cylinders, ect.Besides, we also can produce or develop ... customers are cover USA, Germany, Canada, Japan, Korea, India, Turkey, ect.Advantage of HRPC company:1) professional technology 2) high ...