Tongling City, Anhui Province, China Sapphire Mineral Products Co., Ltd.

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1. Dolomite

we offer steel grade dolomite with silica content below 1 percent.
chemical composition is as follows:
cao 30 percent. min
mgo 20 percent min
sio2 0.5 percent max

ours is the material best suited for the steel companies. ...

2. Hematite

Company's main minerals range:

1. Non-metallic mineral products Series: pyrite, with heavy minerals, barite, calcite powder, dolomite, mica, iron oxide, yellow sand, etc.

2. Non-ferrous metals and ferrous metals minerals Series: hematite, ...