[637238-50G] Silicon dioxide nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis + 243,650원
[637238-250G] Silicon dioxide nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis + 876,150원
[637238-500G] Silicon dioxide nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis + 1,441,550원