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  • Jul 05, 2018

    Superfine heavy calcium carbonate grinding equipment

    Superfine heavy calcium carbonate has high natural whiteness, low price and wide range of ore sources. It is widely used in papermaking, coatings, plastics, rubber, toothpaste, feed and other industries. Ultra-fine grinding is an important part of de...

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  • Jun 07, 2018

    High value-added basalt ore aggregate production line

    Basalt is a volcanic rock and its main components are silica, alumina, iron oxide, calcium oxide, magnesium oxide (also a small amount of potassium oxide, sodium oxide), of which the most content is silicon dioxide, accounting for about 45-50%. There...

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  • Jul 05, 2018

    The environmentally friendly dust-free mill to process stone powder

    To process stone powder in quarry, generally we need to process stone into different fineness stone powder. Kefid produces MTW European type grinding mill, LM vertical mill, HGM medium speed micro powder mill, etc. It can process 80-2500 mesh powders...

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  • Jun 28, 2018

    Mechanism sand equipment recommendation

    Mechanism sand refers to rock particles with a particle size of less than 4.75 mm made by mechanical crushing and screening after soil removal. At present, many areas in the country are producing and using machine-made sand. In some areas, industrial...

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  • Aug 10, 2018

    Kefid good quality stone aggregate production line

    Aggregate is an important building material and a non-renewable resource.Since last year, the price of sand and gravel has been increasing rapidly.From January 2018 to mid-June, the highest increase in sand prices has reached more than 600%, the incr...

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