Specification for approval testing of welding procedures. Part 1. Fusion welding of steel /
Specification for approval testing of welding procedures. Part 1. Fusion welding of steel /
British Standards Institution
- 15 leaves : illustrations ; 31 cm.
- British standard ; BS 4870 : Part 1 : 1981 .
- British standard ; BS 4870 : Part 1 : 1981 .
0580117782
Mechanical testing.
Approval testing.
Steels.
0580117782
Mechanical testing.
Approval testing.
Steels.
