3,4-dibromo-2-methyl-aniline;3,4-Dibrom-2-methyl-anilin;
陜西締都新材料有限公司
聯(lián)系商家時(shí)請(qǐng)?zhí)峒癱hemicalbook,有助于交易順利完成!
締都醫(yī)藥