矽99.57%,鋁0.24%,鐵0.04%,規格24目-140目
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%