newstar ph measuring paper

newstar ph measuring paper

Describe :
Purple Litmus Paper for Measuring PH - Universal indicator paper - pH measuring paper
Product description Material: Indicator paper
Specification: 80 pieces/pack, 1 box Box of 20 packs.
Product information: Litmus paper is paper soaked in a solution of ethanol or water with a colorant extracted from lichen roots, with a...

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