... /DN15-DN2000Angles30, 45, 60, 90, and 180°WTSch5-Sch160 ,such as SCH20, SCH40, STD, SCH80, SC100, SCH120, and SCH160StandardANSI,ASME,API5L ... , construction industry, domestic installation and otherCertificatesISO-9001/2000Special design available as requirement 90 degree tube elbow