Dear valued customer, i cross your web ,know your need chemical goods sometimes . we are the manufacturer of chemcials. musk ketone,bronopol,dbnpa,sodium bromide,dbne,hbcd we are the biggest manufacturer of this product, our annual output come to 5,000 tons.and about 99% were used for export,our customs pervade many countries, such as korea, japan, iatly, germany, russia, chile and so on. we hope can establish longtime business relations with you. if you have other quesitons and e