pipe spool fabrication production line weld preparation ...
FABRICATION, ERECTION AND INSTALLATION PROCEDURE . 2017-1-16u2002·u2002API 5L Specification for Line pipes ASTM A53 Pipe, Steel, Black and Hot-Dipped, Zinc Coated, Welded ... 4.7.1 Shall be responsible for inspection on production of pipes,fittings and spools to ensure ... material is allowed to rest or store directly on ground at all time. 6.2.6 All small-sized fittings, …
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