Chemical analysis of copper and copper alloys; photometric determination of iron in copper and copper alloys containing 0,4 % of iron at maximum— 2 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.
Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); installation of central heating systems and hot water supply systems— 20 стр.