Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); well sinking— 10 стр.
German construction contract procedures - Part C: General technical specifications for building works - General rules for all kinds of building works— 15 стр.
Pipe-lines of high-density PE (high-density polyethylene) and low-density PE (low density polyethylene) for drinking water supply; pipes, pipe connections and fittings for pipe-lines— 6 стр.
Drinking water supply from small units and non stationary plants - Part 2: Non stationary units - Guidelines for drinking water, planning, construction, operation and maintenance of units; Technical rule of the DVGW— 40 стр.
Subsoil and groundwater; classification and description of soil and rock; borehole logging of soil and rock not involving continuous core sample recovery— 20 стр.
Precast unreinforced and reinforced concrete components for manholes over buried drains and sewers - Dimensions and technical delivery conditions— 16 стр.
