1.Type:2202, 2502, 3303, 411, 421, 441, etc. 2.Size: 10-100mm 90%min 3. ... . 4.High quality Silicon Metal Lump1.Type:2202, 2502, 3303, 411, 421, 441, etc.2.Size: 10-100mm 90%min 3 ... ,000 tons. The main silicon grades include 2202, 2502, 3303, 411, 421, 441, etc, which are widely used in variety of ...