The invention relates to a pipeline that is installed without trench and/or sand bed and that is produced by utilizing a metallic conduit pipe clad by an extruded layer made of a polyamide compound. In this manner, the durability of the exterior cladding required for installation techniques without trench or sand bed is ensured.
申请公布号
AU2008292178(B2)
申请公布日期
2013.10.24
申请号
AU20080292178
申请日期
2008.08.27
申请人
EVONIK DEGUSSA GMBH;SALZGITTER MANNESMANN LINE PIPE GMBH
发明人
DOWE, ANDREAS;GORING, RAINER;RISTHAUS, MARTIN;GAHLMANN, KLAUS;BUSSING, REINHARD;KOCKS, HANS-JURGEN;WINKELS, JORN
