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Size: diameter 5.5mm， length 63mm
Tip protection:

* Keep the tip always hung tin!

* Do not use strong acidic flux when soldering!

* You can not repair the file with a file or a hammer and beat the tip!

* The emergence of high-temperature black oxide tip is not on the tin， the first tip black surface oxide cleaned with special cleaning sponge tip wiping， and then re on the tin!