Specification for approval testing of welders when welding procedure approval is not required. Part 1. Fusion welding of steel /
Specification for approval testing of welders when welding procedure approval is not required. Part 1. Fusion welding of steel /
British Standards Institution
- 16 leaves : illustrations ; 31 cm.
- British standard ; BS 4872 : Part 1 : 1982 .
- British standard ; BS 4872 : Part 1 : 1982 .
0580130371
0580130371
