huihong is a professional enterprise specialized in researching, develop-ing ,manufacturing and distributing . In addition , our company is specialized in production of various forged steel/ brass/ bronze valves .For example , bellows valves,cryogenic valves,gate valves ,globle valves ,butterfly valves, check valves ,ball valves , strainers,and so on . Our company has been passed the production strictly .Nominal pressure : PN16--76MPa ,150LB--4500LB. Inside nominal diamiter : DN10--300mm , 3/8"--12" .Main material : A105 , LF2 , F5, F11, F22, 304,304L, 316, 316L, F347, F51,Monel,20Alloy,etc.Our products are applied in many industries such as petroleum ,chemical , metallurgy , electric power , oil refining , medicine , oil & air pipeline ,urban construction pipeline ,imported equipments fitting and important constructions engineering Due to the advanced product structure ,refine technique ,complete range of specifications and high quality ,our products are received good comments from our customers . With the management tenet of strict quality control ,reasonable price and complete service ,we will keep forging ahead .Meanwhile ,we are eager to establish the business ship with old and new customers and construct bright future together.