Quality requirements for welding - Fusion welding of metallic materials - Part 2: Comprehensive quality requirements; German version EN 729-2:1994— 9 стр.
Non-alloy steel tubes and fittings for the conveyance of water and other aqueous liquids - Technical delivery conditions; German version EN 10224:2002 + A1:2005— 59 стр.
Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2003); German version EN ISO 5817:2003— 34 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 14 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 12 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 12 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 16 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 16 стр.