73454554
Nov 28, 1983
Jan 20, 1987
APPARATUS AND DEVICES USED IN THE PROCESS OF CONVEYING MOLTEN METAL NAMELY, SLIDE GATE VALVES FOR HYDRAULIC POURING UNITS
MachineryAUTOMATIC CONTROLS FOR HYDRAULIC POURING UNITS USED IN POURING AND CONVEYING MOLTEN METAL
Electrical and Scientific ApparatusBLOCKS, PLATES AND TUBES MADE OF REFACTORY MATERIAL USED IN THE PROCESS OF CONVEYING MOLTEN METAL
Nonmetallic Building Materials