[637238-500G] Silicon dioxide nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis + 1,326,270원
[637238-250G] Silicon dioxide nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis + 806,080원
[637238-50G] Silicon dioxide nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis + 225,830원