15452 fm BRITISH STANDARD BS EN 639 1995 Incorporating Corrigendum No 1 Common requirements for concrete pressure pipes including joints and fittings The European Standard EN 639 1994 has the status o[.]
BRITISH STANDARD BS EN 639:1995 Incorporating Corrigendum No Common requirements for concrete pressure pipes including joints and fittings The European Standard EN 639:1994 has the status of a British Standard ICS 23.040.50 12&23