Aluminium alloy solid coupling type B with metallic sealing area and with cast iron cover or with aluminium alloy cover, type B; nominal pressure 16— 6 стр.
Aluminium alloy solid coupling type C with metallic sealing area and with cast iron cover or with aluminium alloy cover, type C; nominal pressure 16— 6 стр.
Gully tops and manhole tops for vehicular and pedestrian areas - Design requirements, testing, marking, quality control; German version EN 124:1994— 20 стр.