Quality Basic Copper Carbonate from China.
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Shanghai Yixin Chemical Co., Ltd. quality manufacturer from China.
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Borax Pentahydrate : https://www.yixinchemical.com/supplier-borax_pentahydrate-4166722.html
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Phosphate Salts : https://www.yixinchemical.com/supplier-phosphate_salts-4198928.html
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