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"NOT GO" gauges for screw threads of lampholders E27

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Shenzhen chuangxin Equipment Co.,LTD.

Shenzhen,Guangdong,China
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Purpose: To check the maximum minor diameter of the screw thread, dimension D1 of lampholder E27. Testing: The screw thread of the lampholder shall be assumed to be correct if the gauge does not enter by its own weight so far that the thread protrudes

Purpose: To check the maximum minor diameter of the screw thread, dimension D1 of lampholder E27.

Testing: The screw thread of the lampholder shall be assumed to be correct if the gauge does not enter by its own weight so far that the thread protrudes beyond surface T.
 

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