Yangzhou Aoxin Chemical Factory is always concerned about the quality management,we adopted ISO9001 system into our company and installed a complete QC system,persisting in such tenet of " Producing quality product for meeting customers' demands" ,our quality job and QC system have reached a high standard.Every step starting from the raw material purchase, workshop production, product release , packing and transportation are operated according to the ISO system strictly. Our Q.C./Q.A. departments are well equipped with exact analysis instruments, such as HPLC, GC etc., as a result, products with good quality are guaranteed here.