CPC Subgroup
B28B 7/36 Linings or coatings, (lubricating surfaces of moulds, cores or mandrels B28B7/38)
Full Title
Moulds; Cores; Mandrels (specially adapted for the production of the tubular articles B28B21/00; ) > Linings or coatings, (lubricating surfaces of moulds, cores or mandrels B28B7/38)
4 direct subcodes
Child Classifications
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