... -100mm or 0-3mm, 0-5mm 2,CIQ ,SGS,ISO Silicon Metal for polysilicon 3303# Specifications: 1.CIQ ,SGS,ISO quality certificate ... contend of each element.3.Low contend of microelemen4.The silicon metal is silver grey or dark grey powder, Heat-resistance and ... polycrystalline silicon of high purity for electronic parts. such as semi conductors, etc.4. Used in Automobbile wheel alloy. Pure Silicon Metal for ...