Qingdao Sanli Chemical Engineering Technology Co. Ltd. (SCE), founded in 1992, is an ISO9001 certified fine chemical company, and the largest DEET supplier in China. Qingdao Sanli is well known for its leading technologies and high quality products. It’s specialized in development, manufacturing and distribution of specialty chemicals, intermediates for medicine, pesticide and dyestuff, water-soluble polymers and optical brightener OB-1, KSN as well as thei...