性状：黑色粉末� 用途：用于生产玻璃、陶瓷、马赛克、氧化硒等� Contract：SE 03 027 Customer：LEVA INTERNATIONAL TRADIN COM Product�?6539 SELENIUM 99.9% POWDER 200 MESH FREE FLOWING Analysis� Se �?9.9% Pb �?0(PPM) Hg �?0(PPM) As �?0(PPM) Te �?0(PPM) Cu �?0(PPM) Fe �?0(P