Cement: Portland cement is the most common type of cement in general usage. It is a basic ingredient of concrete, there are two ways for storing:
Aggregates: Fine and coarse aggregates make up the bulk of a concrete mixture.sand natural gravel and crushed stone are used mainly for this purpose. The max diameter should require within 10mm. the aggregate are fed by conveyor from stock pile or by wheel loader into batching station.
Jonathan Yan (exported manager)