酚酞试纸氨气检测试纸 80张每本初中高中化学实验耗材教学仪

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Min_QTY：	1 件
Storage:	100000 件
Delivery：	After payment in days Ship out
Location：	Global Asia China
Available：	Long-term effectiveness
Last update：	2015-12-05 15:32

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Category:	Phenolphthalein test paper

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酚酞试纸 氨气检测试纸 80张每本初中高中化学实验耗材教学仪