flux agent 1)absorb and dissolve inclusion from fuse, also remove gas from fuse 2)low hygroscopicity and evaporation pre

refining agent 1)absorb and dissolve inclusion from fuse, also remove gas from fuse 2)low hygroscopicity and evaporation press

refining agent

1)absorb and dissolve inclusion from fuse, also remove gas from fuse

2)low hygroscopicity and evaporation pressure

3)good viscosity and fluidity

acid sanding agent