Changxing Changlong Environmental Technology Co., Ltd. is a research, development, production and sale enterprise. We have more than 20 products, such as polyaluminium chloride, polyacrylamide, antiseptic, antisludging agent, acrylamide, oilfield agent, etc. The purifying agent series developed by our company and home and abroad experts is widely used in the industries of steel, coal, gold mine, aluminum factory, oil exploration, sewage disposal, textile, building material and chemistry relying on its excellent performance. In the recent years, we developed tunnel mortar...