Build in the safety straight away!
Well-known German concrete companies improved the Standard 4034/1 which is not up-to-date (edition 1993). TOBNORM® conforms with the Standard 4034/1, but contains essential technical improvements.
compression seal always integrated
Preamble Why you should not be satisfied with the minimum demands of the Standard 4034/1 (edition 1993) or your national Standard The technique of TOBNORM® The safety of TOBNORM®
www.tobnorm.de
© Prinzing GmbH 2009