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Cement And Concrete Industries From Shanghai Coal Mine Wallpaper

Cement And Concrete Industries From Shanghai Coal Mine Wallpaper

Jun 20 2020nbsp0183321 Introduction In most industries including coal mining concrete is regarded as one of the most commonly used building materials Aslani et al 2018Concrete consists of natural resources such as gravel and river sand and a burden is placed on the limited available and environmental resources by increasing concrete production Li et al 2015 Meng et al 2018

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