The corporation develops and exploits diatomaceous earth and new products of filter aid continuously, which enlarges the application area of the products.
公司不断的研制开发硅藻土及助滤剂的新产品，扩大了产品的应用范围。
The corporation develops and exploits diatomaceous earth and new products of filter aid continuously, which enlarges the application area of the products.
公司不断的研制开发硅藻土及助滤剂的新产品，扩大了产品的应用范围。
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