Profile: Haiyan Xidi Auxiliary Co., Ltd. deals with the research and development of phosphorus-free auxiliary agents. Our active poly sodium metasilicate is obtained through high-tower high-pressure atomization. This product is an effective and quickly dissolvable phosphorus-free auxiliary agent. It is considered as the ideal substitute for 4A zeolite and STTP. It is widely used in washing-powder, detergent, printing & dyeing auxiliary agent, and textile auxiliary agent industries. It is highly compatible with any kind of surface active agents.