Specification and qualification of welding procedures for metallic materials. Welding procedure test. Arc and gas welding of steels and arc welding of nickel and nickel alloys— 36 стр.
Specification and approval of welding procedures for metallic materials. Welding procedure test for pipeline welding on land and offshore site butt welding of transmission pipelines— 22 стр.
LPG equipment and accessories. Transportable liquefied petroleum gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1000 litres— 60 стр.