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liuwei road,tianjin,China China
Properties lustrous black granule or powder nonpoisonous, tasteless, odorless and easily soluble in water. It is not an antibiotic and derived fro
Humic acid Properties: 1) Black powder, innoxious, odorless 2) It is a kind of heterogeneous macromolecule hydroxy acid, tiny soluble in water
Molecular Formula: Na2S Property: Thin flakes, yellow or red, soluble water, presenting strong alkaline solution, easily oxidized when exposed to
الشخص الذي يمكن الاتصال به Mr. erin yang
عنوان liuwei road, tianjin
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