00353nam a2200121Ia 4500008004100000041000800041082001400049100002700063245005700090250001400147260004300161650002700204230711s9999||||xx |||||||||||||| ||und||  aENG  a620bWO-S  aWöhlbier,Reinhard H. 0aSampling,weighing and proportoning of basic material  a1st . Ed.  c1987aGermanybTrans Tech Publications  aMechanical Engineering