The exhibition by the China quality inspection association of professional committee of the water purification equipment China quality inspection association of professional committee of the air purification equipment and China institute of water and air purification technology guidance for the promotion of international science and technology, henan indoor interior environment and environmental protection product quality supervision and inspection center Household electrical appliances association of professional committee of the water purification equipment in henan province and henan province friendly environmental quality research institute coalition government related leading department jointly hosted Penetration as henan local company of the most professional water quality purification and monitoring...[more]