Its composition includes (by weight portion) sodium hexametaphosphate 60-70 portions, calcium hydrogen phosphate 20-30 portions, copper carbonate 5-10 portions and zinc carbonate 5-10 portions.
英
美
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本发明水处理剂由以下重量份的原料制成:六偏磷酸钠60-70份、磷酸氢钙20-30份、碳酸铜5-10份、碳酸锌5-10份。
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