Luoyang Petrochemical developed a new asphalt product

In recent years, Sinopec Luoyang Branch has developed A-100 ordinary road asphalt and AH-90 heavy-duty asphalt. It has passed the technical appraisal of the Ministry of Communications and has been officially put on the market with good economic returns. It is reported that the comp

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Precautions for lead-zinc ore flotation

For iron-containing multi-sphalerite metal sulfide ore flotation, generally there are three alternative process structure, i.e. flotation, flotation and the like can float process. The essence of iron sphalerite flotation is the separation of iron sphalerite from pyrite or pyrrhotite. However, in

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