different stocks pure titanium flanges 1.standard: GB/T,GJB,ASTM,ASM,DIN 2.material: TA1,TA2,TA9,TA10,Gr1/2/5 different stocks pure titanium flangesmetallic pure titanium flangestandard: GB/T,GJB,ASTM,ASM,DINmaterial: TA1,TA2,TA9,TA10,Gr1/2/5a. pure and alloy titanium flangeb. size: the thickness is from 35mm to 250mm 100mm-900mm is the inside diameter the outside diameter is up to 1300mm c. ...