发明授权
EP0838833B1 Preform for fluorescent lamp, fluorescent lamp prepared by the same, and method for preparing the fluorescent lamp 失效
荧光灯的预成型体,在这样的荧光灯和预成型件的生产工艺制造的

Preform for fluorescent lamp, fluorescent lamp prepared by the same, and method for preparing the fluorescent lamp
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