Washing process - uses machine with filter and several storage containers which conduct rinsing liquor from 2nd and 3rd rinsing into joint container
DE3915958A1
Appts. for filtering liquids - by flowing upwards through moving particulate filter bed, then re-directed to parallel filter when certain differential pressure is reached
DE3901976A1
Application device for applying a metal layer to a metallic base
DE3834035A1
DEVICE AND METHOD FOR LONG-TERM CORROSION PROTECTION OF DAMAGE TO AUTOMOTIVES
BR8807193A
Process and device for the preparation of hydroxide sludge
EP0373174A1
Process and device for purifying degreasing solutions
