three stage cylinder 1)multi type design 2) red/blue color 3 ... mechinery HRPC brand double acting hydraulic stell oil cylinders 1)multi type design2) red/blue color3) carbon steel ... ball valve, carbon steel ball valve, oil cylinders, multi-stage cylinders, ect.Besides, we also can produce or ... with own brand -- HRPC, and also can supply OEM service.Our customers are cover USA, Germany, Canada, Japan, ...