伤风 😵😩😷

bitcast (49)in #zzan • 5 years ago

伤风 😵😩😷

3 ways to calibrate ORP meter

Quinhydrone
Ferrous cyanide + Ferric cyanide
pH buffer (- 59.1 mV for each pH unit below pH 7)

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#marlians #palnet #neoxian #jjm #partiko

5 years ago in #zzan by bitcast (49)

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zzan.hmy (64) 5 years ago

@bitcast님, steemzzang은 여러분을 환영 합니다.

☀️ 팔릴까? 안팔릴까?
🌕 팔자 뭐든 팔자
⭐️ palja는 여전히 영업 합니다.

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botfolio (51) 5 years ago

!shop

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teamcn-shop (69) 5 years ago

Hi~ bitcast!
@botfolio has gifted you 1 SHOP!

Currently you have： 3 SHOP

^{View or Exchange SHOP Please go to steem-engine.com.}

Are you bored? Play Rock,Paper,Scissors game with me!

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