1.material: gr1,gr2,gr3,gr5,gr7,gr9,gr12 2.standard:astm b381,ANSI B16.5,DIN2630-2636,GB/T9116,HG29523 THE ... DESCRIPTION OF OUR FLANGE item nametitanium flangeSTANDARDASTM,ANSI, DIN, GB,HGMATERIALGR1,GR2,GR3,GR4,GR5,GR7,GR9, ... PN250 (ANSI) CL150,CL300,CL600,CL900,CL1500WORKING TEMPERATURE-6--250 0CFLANGE STYLEFF,RF,TG,RJ ,ECT.QUALITY CONTROLLultrosonic testing and material quality ...