Ngwaọrụ nrụgide na mmiri nrụgide dị elu nwere ike imeziwanye nrụgide egweri nke roller, nke na-eme ka arụmọrụ ka mma site na 10%-20%.Na arụmọrụ akara na mmetụta iwepụ uzuzu dị mma.
Ike:0,5-3TPH;2.1-5.6 TPH;2.5-9.5 TPH;6-13 TPH;13-22 TPH.
Ngwa:Simenti, Coal, ike osisi desulfurization, metallurgy, chemical ụlọ ọrụ, na-abụghị ọla ịnweta, ewu ihe, seramiiki.