1.Grade:553,441,411,331,3303,211,2202, 2.Size: 10-100mm,90% min. 3.MOQ: ... weldability accordingly. 2. Used in organic chemicals: Silicon metal is used in manufacturing a number of sorts of silicones, resins, and lubricants. 3. Used ... in electronic parts: Silicon metal is used in producing monocrystalline and polycrystalline silicon of high purity for electronic parts, such as ...