rigid 90 degree elbow 1)MOQ:1 pc 2)material:ss304, ... ,316l 3)Certificate:ISO9001,API,ABS,BV 4)good price rigid 90 degree elbow,seamless elbow,carbon steel pipe fittings elbow ... installation and otherCertificatesISO-9001/2000,APISpecial design available as requirement rigid 90 degree elbow