湖北奥斯纳华工科技有限公司

hubosina chem-tech co.,lmail: xiongling@aosinachem skype: xiongling@aosinachem we are china direct supplier of rcs, specialized in researching, exporting and manufacturing pharmaceutical intermediates for many years. the main products are: 4-cec bk-ebdp fub-amb 5f-adb 4c-pvp 4f-php nm2201. our products are in very high purity and quality. especially its efficient are in very good repute. we he our won technical team and  precision laboratory to make sure our technical updates in time to create...