Hi, we have one trading company and two factories who are producing micro-silica fume, silica powder and hardware goods, machinery components.Best RegardsYours FaithfullyJennifer HuTel.:86-592-5999711/5822965,Ext.808Fax.:86-592-8261370,Skype:hjz0721MT: 86-159858 18018E-mail: [email protected] http://yulin-xm.en.alibaba.com Xiamen Yu Lin S&T Co., LtdXiamen Yu Lin Trade Co., Ltd