دانلود استاندارد API 5L خرید Specification for Line Pipe, Forty-sixth
درباره استاندارد API 5L خرید API 5L. This specification specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries. This specification is not applicable to cast pipe ...