... Covering Flux BaseKeywordsprotective flux base, covering flux base, continuous casting, metallurgy, cover slags base, protective slags base, foundry covering flux, ... flux, mould covering flux, raw materials, base materialIntroducionCovering Flux Base is made from silica and limestone as main ... 16% max; BaO: 12% max; P/S: 0.05% max etc.Other specification can be adjusted by customers’ requirementSize ...