PROCESS FOR THE PRODUCTION OF PIPING MADE OF A CEMENTITIOUS MATERIAL HAVING A CIRCULAR SECTION
摘要
<p>The present invention relates to a process for the production by extrusion of piping made of a cementitious material having a circular section and fine thickness, suitable for the channelling of liquids and gases at atmospheric operating pressure or slightly higher.</p>
申请公布号
WO2007065699(A1)
申请公布日期
2007.06.14
申请号
WO2006EP11809
申请日期
2006.12.06
申请人
ITALCEMENTI S.P.A.;GUERRINI, GIAN, LUCA;ALFANI, ROBERTA
