30M6 16 is suitable for 3030, 3060, 6060 and other aluminum profiles with a groove width of 8mm. 30M6 25 is suitable for 3030, 3060, 6060 and other aluminum profiles with a groove width of 8mm. 40M8 16 is suitable for 4040, 4080, 8080 and other groove width 8mm aluminum profiles.
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