Method for preparing bulb at cool end of helical fluorescent lamp tube

Method for preparing bulb at cool end of helical fluorescent lamp tube

  • CN 101,362,626 B
  • Filed: 08/10/2007
  • Issued: 05/07/2014
  • Est. Priority Date: 08/10/2007
  • Status: Active Grant
First Claim
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1. a preparation method for bulb at cool end of helical fluorescent lamp tube, is characterized in that when bend pipe, and on the internal mold of internal mold spiral shell core, basis is made a breach to the size of bulb at cool end and status requirement, and in bend pipe process, completes the manufacture of bulb at cool end simultaneously.

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