... . With a production capacity up to 30, 000 tons, Jiangsu Polycon Co., Ltd has four series of polymer concrete products. They are ... channels, manholes, manhole covers and flumes. The products of Jiangsu Polycon Co., Ltd are widely applied in well-known projects including the ... . With a production capacity up to 30, 000 tons, Jiangsu Polycon Co., Ltd has four series of polymer concrete products. They are ...