Beijing Hengju Chemical Group Co., Ltd.

[ Manufacturer Trader ]Main business are Water treatment chemical agent

Shenzhen Hanko Environmental Protection Technology Co., Ltd

[ Manufacturer ]Main business are Water treatment product

Wen County Huachang Water Purifying Material Factory

[ Manufacturer ]Main business are Filter

Beijing Hengju Oil Field Chemical Agent Co., Ltd.

[ Manufacturer ]Main business are Oil field chemical agent