Grade: 20#, A53(A,B), A106(B,C) Application: Structure Pipe Technique: Seamless Secondary Or Not: Non-secondary ISO 9001CERTIFICATE.Types: Elbows, seamless and welded, LR & SR ,Bend -Equal and reducing Tees,Wall thickness: From Sch5 up to Sch160/STD/XS/XXSDimensions: Seamless: from 1/2' up to 24'