Construction auxiliaries, namely clays and clay suspensions as rinsing agents and auxiliaries for ground drillings, for subterraneous curtain construction and tunnel construction, for pipe-jacking, for caisson, shaft and well sinking and for the lubrication of sheet pile planks
Dazu sollten die Möglichkeiten genutzt werden, die die modernen Technologien für einen unmittelbaren Zugang zu Informationen bietentmClass tmClass