Iron oxide is one of the earliest pigments used by human beings. It is widely used in coatings, light materials, plastics, rubber and other fields. With the progress of science and technology, people...
1. What kinds of chemicals are commonly used in wastewater treatment? In order to meet the discharge standard or reuse after wastewater treatment, a variety of chemicals need to be used in the...
1、 Price trend According to the data, on April 30, the domestic carbon black quotation was 7600 yuan / ton, with a small price fluctuation, and the price fluctuation range was 100-300 yuan / ton, and...
With the development of building ecological and environmental protection, return to nature, green and low-carbon design concept, green concrete products with the same concept are gradually rising in...
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