... 2"-40" Certification:ISO9001,API6D, class 150-1500 ball valve size: 2"-48" standard :ISO9001,API6D, BS,1.TypeF2 series floating ball ... valve,G3 series trunnion ball valve, G2 series trunnion ball valve, T series ... BOP, tubing head, casing head, tee, spool, hanger, flange and OEM service too. we have the certifications such as ISO9001,CE ...