Fully illustrated design manual for concrete pressure pipes with ref. to European standards EN 639 - EN 640 - EN 641 - EN 642 and U.S.A. Standards AWWA C300 - AWWA C301+C304 - AWWA C302 - AWWA C303
https://mega.nz/#!pIkXHK5L!3cH0Ywi6RmozY0nvSdEEuAy70WosRkChUi7hMN_zBy4