Historical
MSS SP-75-2004
Specification for High Test, Wrought, Butt Welding Fittings
This specification covers factory-made, seam-less and electric fusion-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.
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Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]
