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MSS SP-75-2014

Действует
High-Strength, Wrought, Butt-Welding Fittings — 33 стр.
Abstract

This Standard Practice covers factorymade, seamless and electric welded carbon and low-alloy steel, butt-welding fittings for use in high pressure gas and oil transmission and distribution systems; including pipelines, compressor stations, metering and regulating stations, and mains.