... Grade 553:1, Metal Grade Silicon 553 for aluminum alloy ADC12, A3562.Size: 10-100mm 90%min 3.Packing: 1Mt bag ... .50.330-60PPM10-100MM 90% MINApplications: Manufacturing silicon aluminum alloy, ADC12, A356, and so on;Making silicone rubber, silicone, silicone oil ... silicon metal, silicon powder, and also engaged in polysilicon, magnesium ingot, petroleum coke and other products, which is one of the ...