BS EN 10253-4
BS EN 10253-4 (Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements)· B.S. (United Kingdom) · 50 materials
BS EN 10253-4 (Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements)· B.S. (United Kingdom) · 50 materials