Chengdu Tongli Auxiliary Co., Ltd is the professional manufacturer of "Tongli��chemical auxiliary series. It�� an integrated enterprise involving science, industry and trade, focused on development, production and sale of dedicated chemical auxiliaries. The company has advanced production equipment, modern detection methods and strict quality assurance system, and also passes the certification of ISO9001:2000 international quality management system.As a sci-tech manufacturer with several years of experiences in producing detergents, the Company has maintained close cooperation with scientific research organizations of famous universities and experts in this industry over the years. Moreover, it has begun to focus on development in the field of new environment-friendly detergent auxiliary since many years ago and devoted technical forces into related researches for a long time. Based on years of experience in detergent industry and market-related knowledge and through well preparation and several frustrations, the company realized a breakthrough in key technique and successfully developed the new phosphorus-free detergent auxiliary ��odified sodium disilicate (commercial designation MDS), which is leading in technique domestically at present. MDS can be the best substitute of sodium tripolyphosphate for it�� comprehensively applicable to production of phosphorus-free washing powders under different conditions. Besides, since the cost is greatly reduced, the general price-performance ratio is far superior to some related traditional products at the same price level, such as 4A zeolite. Presently, the company has established a modified sodium disilicate production line with capacity of 50000 tons/year at initial stage. Repeated testing of competent authorities and trial using of users show the product with excellent performance indexes and reliable quality is a perfect detergent for phosphorous-free washing powders.