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huangliyu1 Hello. First of all, our 7W engraving machine can only carve aluminum oxide. The carving effect of other metals is not good. If you can\'t carve aluminum oxide, you can adjust the laser by yourself. There is a rotation twist at the bottom of the laser tube which is specially used to adjust the laser, and adjust the laser to the finest point. If it\'s still not possible, the laser may burn out, but the probability is very small. Our 7W laser has a very low defect rate. Have a nice day!

2019-12-02 02:44:17 Helpful (0)
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marcus 2019-11-20 10:24:05
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marcus 2019-11-18 05:39:26
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marcus 2019-11-18 05:39:28
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marcus 2019-11-18 05:39:27
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marcus 2019-11-18 05:36:58
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