Standard ：GB3091-2015,
Grade ：Q235
Thickness ：GB stander
Section Shape：Circular
Place of Origin ： Hebei
Outer Diameter：21.3mm-219mm
Technique：ERW
Certification ：ISO、CE、SRIM、
Application: Gas pipe,
Surface Treatment: Hot dipped galvanized 500g/Sq， 100% hydrostatic test。
Packaging&Deliver
Packaging Details : Bundle
Delivery Detail : bulk or container
