Measurement of fluid flow by means of orifice plates, nozzles and venturi tubes inserted in circular cross-section conduits running full (VDI-rules for measurement of fluid)— 62 стр.
Construction contract procedures (VOB); part C: general technical specifications in construction contracts (ATV); installation of HVAC systems— 23 стр.
Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); installation of air conditioning systems— 22 стр.