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https://www.ste-mart.com/chemical-product-testing.htm

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Chemical production technology uses chemical methods to change the composition and structure of substances, or to synthesize new substances. Products manufactured through chemical production technology are called chemical products. Common chemical products include oil products, chemical auxiliaries, pesticides, fertilizers, chemical raw materials, cleaning agents, petrochemical products, electronic chemicals, etc. With the rapid development of the economy, people's demand for chemical products is increasing, and the environmental pollution problems and safety risks caused by chemical production have also attracted more and more attention.