BS EN 4677-001. Aerospace series. Welded and brazed assemblies for aerospace constructions. Joints of metallic materials by electron beam welding. Part 001. Quality of welded assemblies— 32 стр.
Heating boilers. Heating boilers for solid fuels, manually and automatically stoked, nominal heat output of up to 500 kW. Terminology, requirements, testing and marking— 84 стр.