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M5Rick · 07-16-2025, 01:06 AM

Methylene blue was used as a dye in the textile industry when it was first discovered.

07-16-2025, 01:06 AM	#19
M5Rick General 79648 Rep 24,808 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: GB iTrader: (0)	Methylene blue was used as a dye in the textile industry when it was first discovered.
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