This product is a safe and excellent natural preservative. Its economic value is higher than monascus red coloring matter.
该产品是一种安全、性能优良的天然防腐剂，经济价值高于红曲红色素。
The commercial value of natural diamond is often influenced by some coloring ions and inclusions in diamond.
天然钻石常因含各种呈色离子及包裹体等而大大影响了其商业价值。
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