Contract Procedure for Building Works; Part C: General Technical Specifications for Building Works; Thermal Insulation Works on Technical Installations— 26 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.
Contract procedure for building works; part C; general technical specifications for building works; thermal insulation works on technical installations— 26 стр.