发明名称 MAKING METHOD OF ALUMINUM KITCHEN WARE
摘要 Method for manufacturing an aluminum kitchen ware consists of (i) forming a ware body by deep-drawing the aluminium ware material in the conventional metal mould, and (ii) forming an upper rim of the ware body in the metal mould including the protruded round part of which the inner diameter is somewhat smaller than the outer diameter of the formed ware body. In the finished ware, the thickness of the upper rim is equal to that of the bottom face.
申请公布号 KR890002817(B1) 申请公布日期 1989.08.04
申请号 KR19850006968 申请日期 1985.09.20
申请人 RYU, JIN-HO 发明人 RYU, JIN-HO
分类号 B21D51/10;(IPC1-7):B21D51/10 主分类号 B21D51/10
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