2009-12-8 20:26Ammonia exists in natural water resources and is also a product of microbial decomposition of proteins in decaying animals and plants. If the degree of ammonia......
2009-5-31 12:55Daikin Air Conditioner Repair in Jing'an District, Shanghai, including air conditioner refrigerant refill and relocation services. Phone: 66517260.
Shanghai Da......
2008-12-3 9:14Treatment of drinking water with excessive fluoride is also a challenge worldwide, especially there are few technologies with low cost but high efficiency. The......