acid sanding agent
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