We,JiangsuYifengMachineryManufactureCo.,Ltd.(China)isaprofessionalmanufacturerthatisconcernedwithdesign,developmentandproduceexpansionjoints,bellows,metalhoses,valves&Petroleummachinery,suchaswellhead,tubingspool&christmastree,gatevalve,checkvalve,chokevalve,drillingmanifold,testmanifold,mudgatevalve,high-pressureunion,plugvalve,etc. Wefocusonlong-term,faithfulandexcellentcooperation!