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Filing date
Publication date
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Publication of BE726635ApublicationCriticalpatent/BE726635A/xx
B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C9/00—Cooling, heating or lubricating drawing material
