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HANNA Instruments 防水型手持式飲用水pH測試儀 HI99192
Drinking Water pH Portable Meter - HI99192
HANNA Instruments 防水型手持式皮革/紙張pH測試儀 HI99171
Leather and Paper pH Portable Meter - HI99171
HANNA Instruments 專業級 pH 1.68標準液 (@25℃) 20mL x 25包 HI50016-02
pH 1.68 Technical Calibration Buffer Sachets (25 x 20mL) - HI50016-02
waxfilm 封口蠟膜
Laboratory Film
HARIO V60經典清透咖啡壺(VBS-36/VBS-60)
HANNA Instruments 氫氧化鈉 5M, 500mL HI70435
Sodium Hydroxide Solution 5M, 500 mL - HI70435
台製 固定夾 四角型
Clamp Holder
電解棒
Electrolyzer