... ,ASME,GB titanium different diameter pipe Standard: GB, DIN, ASTMStandard: GB 3087-1999, DIN 17175, ASTM A106-20...Grade: A53-A369Grade: A106 ... :159mm-2850mm 3.Wall thickness:SCH 5-SCH160 XXS 4.Standard :ANSI,ASME,GB,SH,HS,MSS,API 5.Type:Spiral ...