Silica powder Microsilica or Silica fume

Mesh: 200, 325, 400, 500, 600, 800, 1000, 1250, 2000, 2500, 3000, 4000, 5000
granule/μ m:d50, d75, d90, d97, d99.5

Whiteness : 94-96％
Brazing Alloys(%):
sio2 99.8-99.9％
fe2o3 ≤ 0.005％
al2o3 0.08-0.15％