Changzhou Duoling Water Treatment Factory is located in Lijia Town, Wujin District, Changzhou in the center of the Yangtze River Delta, beside the Taihu Lake. Since 1985, we have been developing and improving ourselves step by step on the basis of plastic rotameter orientation. Then, disc plate filtration systems were brought in and researched in the year of 2005. Products: plate filters, disc filters, plate disc filters, O-type stack filters, irrigation filters, irrigation filtration ...