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الشخص الذي يمكن الاتصال به Mr. yongzhong
Xiying road, Xian, Shaanxi
Pre-treatment step in water treatment, pre-formed in the metal surface protective film for a class of chemicals. Pre-film two purposes: First, inhibition of corrosion in the early stages of the use of chemicals to improve the concentration of dosing; the second is to adopt a special pre-film, so that during normal operation a small amount of corrosion inhibitor dosage can be maintain and repair protective film, pharmaceutical, and cost savings
