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A gloved hand holding a transparent test tube with blue liquid inside

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A transparent container filled with vibrant yellow liquid

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Color change chart with a reagent package

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pH testing kit color chart with test tube

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A gloved hand holding a transparent test tube with blue liquid inside

彩

Color change chart with a reagent package

モノヒョー

A transparent container filled with vibrant yellow liquid

olive444

pH testing kit color chart with test tube

モノヒョー

A gloved hand holding a transparent test tube with blue liquid inside

彩

pH testing kit color chart with test tube

モノヒョー

A transparent container filled with vibrant yellow liquid

olive444

Color change chart with a reagent package

モノヒョー