Is nonmetallic mineral aggregate machine-made sand or crushed stone?

Non-metallic mineral aggregate is made of non-metallic minerals with different particle sizes by mechanical processing such as crushing, processing, shaping and screening, which conforms to the definitions of machine-made sand and crushed stone. Machine-made sand refers to rock particles with particle size less than 4.75mm prepared by mechanical crushing and screening, and crushed stone refers to rock particles with particle size greater than 4.75mm after crushing and screening.