German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 12 стр.
German construction contract procedures - Part C: General technical specifications for building works - General rules for all kinds of building works— 15 стр.
Plastics piping systems for water supply - Unplasticized poly(vinyl chloride) (PVC-U) - Part 4: Valves and ancillary equipment; German version EN 1452-4:1999— 18 стр.
Plastics piping systems for water supply - Unplasticized poly(vinyl chloride) (PVC-U) - Part 5: Fitness for purpose of the system; German version EN 1452-5:1999— 12 стр.
Central drinking water supply - Guide lines regarding requirements for drinking water, planning, construction, operation and maintenance of plants - Technical rule of the DVGW— 10 стр.
Drinking water supply from small units and non stationary plants - Part 1: Small units - Guidelines for drinking water, planning, construction, operation and maintenance of plants; Technical rule of the DVGW— 32 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— 14 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Underground construction work— 18 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - General rules applying to all types of construction work— 14 стр.