portlandchemsky Oct 16 2017 UV

portlandchemsky (48)in #portlandchemsky • 7 years ago

UV-AB 6.21 and UV-C 49

7 years ago in #portlandchemsky by portlandchemsky (48)

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roniakbar623 (25) 7 years ago

it is digital to measure what a companion is..

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portlandchemsky (48) 7 years ago

I have a digital watch!

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