Precast concrete pipes, fittings and ancillary products, Specification for unreinforced and reinforced pipes and fittings with flexible joints— 44 стр.
Concrete pipes and ancillary concrete products, Specification for unreinforced and reinforced concrete pipes (including jacking pipes) and fittings with flexible joints (complementary to BS EN 1916:2002)— 26 стр.
Concrete pipes and ancillary concrete products, Specification for unreinforced and reinforced concrete pipes (including jacking pipes) and fittings with flexible joints (complementary to BS EN 1916:2002)— 26 стр.
