Precast unreinforced and reinforced concrete components for manholes over buried drains and sewers - Dimensions and technical delivery conditions— 16 стр.
Reinforced concrete pressure pipes and distributed reinforcement concrete pressure pipes (non-cylinder type), including joints and fittings; German version EN 640:1994— 10 стр.
Water-tube boilers and auxiliary installations - Part 11: Requirements for limiting devices of the boiler and accessories; German version EN 12952-11:2007— 38 стр.
Tensile testing of metallic materials; method of test at ambient temperature (including Corrigendum AC1:1990); german version EN 10002-1:1990 and AC 1:1990
Precast unreinforced and reinforced concrete components for manholes over buried drains and sewers; Dimensions and technical delivery conditions— 16 стр.
Cold processable plastic jointing materials for sewerdrains - Jointing materials for prefabricated parts of concrete, requirements, testing and processing— 14 стр.
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.