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≤100nm, 99% metals b
≤100nm, 99% metals b
≥99% metals basis, ≤100nm
100nm 球形,99% metals basis
30nm 球形,99.5%
30nm 球形,99.5%
30nm 球形,99.5% metals basis
50nm 球形,99.5% metals basis
99% metals basis
99%metalsbasis
nanopowder, <100 nm particle size (BET), >99% trace metals basis