different stocks pure titanium flanges 1.standard: GB/T,GJB,ASTM,ASM,DIN 2.material: ... ,TA2,TA9,TA10,Gr1/2/5 different stocks pure titanium flangesmetallic pure titanium flangestandard: GB/T,GJB,ASTM,ASM,DINmaterial: TA1,TA2 ... ,DN10-DN600.d. application: chemical equipment, metallurgical, chemical machine, petrochemical1.titanium managing license2.our flange diameter is special big3.timely delivery