BS-2971 › Complete Document History
Specification for class II arc welding of carbon steel pipework for carrying fluids
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1991 EDITION - REAFFIRMED IN 2001 - June 28, 1991
AMD 9773 - AMENDMENT 1 FOR 1991 EDITION - Feb. 1, 1998 |
Obsolete Revision Information: |
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1977 EDITION - OBSOLETE EDITION - Jan. 1, 1977
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