1.over 20 years experience 2.purity:96%,99.6% 3.good confirmation of reputation 4.CAS NO:144-62-7 5.MOQ:10MT Company information: 1. It was established with a perfect marketing system domestic and abroad,2. Provide high quality products and good after-sales service.3. with the whole line of producing, saling and trading,4. the products are exported to more than 50 regions and countries domestic ...