亚洲国产成人久久一区www,人妻办公室出轨上司HD院线,日本aⅴ精品中文字幕,精品国内综合一区二区

On the one hand, a sound drinking water standard ensures the safe supply of drinking water for residents. The authoritative and representative drinking water standards for pharmaceutical pure water equipment in the world include the World Health Organization's Drinking Water Quality Code, the European Union's Directive on Drinking Water Quality and the National Drinking Water Quality Code of the U.S. Environmental Protection Agency. Most of the drinking water standards formulated by other countries or regions are based on or heavy on them. For reference.

On the other hand, foreign residents have a strong sense of drinking water safety. They have a good knowledge of deionized water treatment equipment for tap water. It is difficult to remove the harmful elements such as pesticides, pesticides, polar solutes and heavy metals from the water in general tap water treatment. Simple chlorination sterilization and bleaching can cause chlorine and water to have chlorine. The strong carcinogenic factor (trihalomethane) occurs in the reaction of the organism, so the device of water purifier is indispensable.

Author: Hangzhou Water Shield Technology Co., Ltd.

Key words: medical pure water equipment, deionized water treatment equipment