73510985
Nov 29, 1984
Jul 23, 1985
VACUUM PUMPS, VACUUM SYSTEMS FOR DEGASSING THE ZONE WHERE THE SCREW OF AN EXTRUDER IS LOCATED, THE SYSTEM CONSISTING ESSENTIALLY OF A VACUUM PUMP, A GAS SCRUBBER/CONDENSER UNIT, A RESERVOIR CONTAINER FOR TAKING UP THE CONDENSATE, AND A VACUUM METER
Machinery