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iplusmile Chromatography Paper Strip, Experiments Filter Paper Laboratory Filter Paper for Pigment Separation Science Experiment Chemistry School, 600pcs sound help you to play aiplusmile Chromatography Paper Strip, Experiments Filter Paper Laboratory Filter Paper for Pigment Separation Science Experiment Chemistry School, 600pcs Description This item is a set of laboratory paper for doing experiments. The experiment paper is made of premium material for long time use. It is easy to operate in your laboratory and more durable than ordinary ones. It is fantastic for teachers to teach pupils chemistry. Features Material: