Our welders own welding permission:
EN 287-1(2)
Metoda 311(GW for materials range 1
141(WIG) for materials range 1, 4, 5, 6, 8, 10 a 11
111 (MMA) for materials range 1, 4, 5, 6, 8, 10 a 11
For all DN pipe wall thickness and the position of the H-L045
Pipe fitters are trained in reading of isometric drawings.
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