Metal-arc welding with covered electrode, gas-shielded metal-arc welding and gas welding; joint preparations for steel (ISO 9692:1992); German version EN 29692:1994— 14 стр.
Metal-arc welding with covered electrode, gas-shielded metal-arc welding and gas welding; joint preparations for steel (ISO 9692:1992); German version EN 29692:1994— 14 стр.
Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); metalwork— 21 стр.