Domestic condition of metal crown lid was analyzed, and the difference of metal crown lid between domestic and abroad in material, mould, and facilities was put forward.
分析了皇冠盖的国内现状，指出了国内皇冠盖在材料、模具以及生产设备上与国外的差距。
Domestic condition of metal crown lid was analyzed, and the difference of metal crown lid between domestic and abroad in material, mould, and facilities was put forward.
分析了皇冠盖的国内现状，指出了国内皇冠盖在材料、模具以及生产设备上与国外的差距。
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