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Code and standard: API Spec 5L

API Spec 5L covers 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.

BUHLMANN Rohr-Fittings-Stahlhandel GmbH + Co. KG

Buhlmann Tubes, Fittings and Flanges for Steam Boilers, Chemical Plant Construction and Oil and Gas Industry. Our products correspond to both current international (API) and European (EN) standards

AG der Dillinger Hüttenwerke

Dillinger steel plates are normalised fine-grained structural steels that conform to a large range of international standards and codes of practice for structural-steel engineering, pressure vessel steel plates, etc..