... .silicon metal 3303 2.silicon metal ingots 3.silicon metal 441 4.silicon metal 553 5.silicon metal 2202 silicon metal ... 2 factories 3.Low B&P Silicon metal:Grade:553/441/421/3303/2502/2202Size:10-100mm ,90%minPacking:in 2 ... high purity of all grade Silicon Metal ,such as #553,#441,#421,#3303,#2202#,2502 with low P&B.Should any ... -421>99.2%≤0.40.1-0.15≤0.1-441>99.0%≤0.4≤0.4≤0.1-553>98 ...