Ningbo Yihe Green-board Co. ,LTD was established in 2006. It is located in Longshan town, Cixi city ,which is at the side of Hangzhou wan Bay ,having a distance of 270km to Shanghai and 35km to Ningbo Port . Newly built 6 workshops and 6 sets of automatic producing lines with total investment 20 million USD , which covers an area of 50 thousand square meters .The annual output could reach more than 20 million square meters (of Calcium Silicate board ) ,it is one of the first-grade professional enterprises specialized in designing and manufacturing Calcium Silicate board in China .