 18819365158
 18819365158
         
                                    矽>98%,鐵0.02%
 
                                    半透精砂#板材砂#濾料#填充料8-16 16-26 26-40 40-70 70-120
 
                                    矽>97%
 
                                    矽99.86%,鋁0.03%,鐵0.003%
 
                                    矽99.886%,未酸洗,隻做了磁選,未烘幹