... 1.Company profileWelcome to Kairuite Valve Co.,Ltd.We are a leading company engaged in valve design, ... manufacturing and sales.Our products are applied to Oil field, Petrochemical, Refinery, Power ... Station, Ship,Water treatment and Natural gas fields. We have passed API6D, CE/PED, ISO9001:2008, ISO14001 ... seal :PTFE, PEEK, nylon, RPTFE big sizes flanged cast steel ball valve