different stocks pure titanium flanges 1.standard: GB/T,GJB,ASTM, ... ,DIN 2.material: TA1,TA2,TA9,TA10,Gr1/2/5 different stocks pure titanium flangesmetallic pure titanium flangestandard: GB/T,GJB ... inside diameter the outside diameter is up to 1300mm c. specification: PNO.6-PN26MPa,DN10-DN600.d. application: chemical equipment, metallurgical ...