性做久久久久免费观看,伊人精品久久久久中文字幕,亚洲电影在线观看,99久久人妻精品免费一区

QYD Environmental Engineering Co.,Ltd. Is a holding enterprise of Qingdao Yuanding Group Co., Ltd., mainly engaged in deSox, deNox, dust removal and other air pollution treatment projects, industrial waste heat power generation and hazardous waste solidification engineering. Using the international advanced technology to completely treat the flue gas without any secondary pollution while the residues can also be treated and disposed harmlessly. The company is committed to the protection and treatment of environment. Focusing on air pollution prevention and energy conservation, relying on the talent advantages of innovative technology, the company provides customers with personalized solutions for air pollution control, so as to meet the growing environmental protection needs of society. The main customer includes the treatment of glass furnace, thermal power plant and coking waste gas..