As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

1. Production capacity: we have three production base with high-tech production equipment and instruments, equipped with professional production personnel, meet your requirements.2. Quality assurance: we have a first-class testing equipment and testi

1 good quality, better price and bettter service；2 Timely delivery；3 100% refunded if parcel is t delivered or poor quality.We will try to satisfy you upon receipt of your reply. I hope that we can become a long-term cooperative partner. Application:

YUYONGMEI was established in Aug,1999, located in the industrial park of Nanjing University of Technology, It is a private enterprises in Jiangsu Province with 1200 square meters’ R&D center. Our R&D center has a well-equipped synthetic laboratory a