API(American Petroleum Institute),API 5L Line Pipe,API 5D

The American Petroleum Institute, commonly referred to as API, is the largest U.S trade association for the oil and natural gas industry.[......]

Read more …

AWWA C 200

AWWA C200 standard covers electrically butt-welded straight-seam or spiral-seam pipe and seamless pipe 6 in. (150 mm) in nominal diameter and larger for the transmission and distribution of water or for use in other water system facilities.[......]

Read more …