The size nke ịnweta ajị osisi na-ekewa n'ime metric size na eze ukwu size na unit usoro.Nke a bụ n'ihi na ihe dị iche na ntughari nke unit usoro nke ịnweta ajị osisi nha n'ụlọ na ná mba ọzọ.N'ezie, a na-ekewa bọọdụ ajị mineral anyị na-ejikarị n'ime nha ọnụ na nha n'ezie.

The nominal size nke ịnweta ajị osisi na-ezo aka linear anya n'etiti abụọ n'akụkụ myirịta keels na grid ekara kwụsịtụrụ uko ụlọ mgbe mineral ajị osisi na-eweli, ya bụ, size nke ịnweta ajị osisi gbakwunyere keel nsọtụ nke anyị. nwere ike ịhụ mgbe ebulichara elu ahụ .N'ezie nha nke bọọdụ ajị anụ ịnweta na-ezo aka nha nke bọọdụ ajị mineral nke anyị nwere ike tụọ n'ezie.Nha n'ezie na-adịkarị obere karịa nha aha nke bọọdụ ajị ịnweta.N'ihi na bọọdụ ajị anụ ahụ kwesịrị ịtụle obosara nke keel, njehie nrụnye, wdg n'oge ntinye nke eriri ajị anụ ahụ, ọ dị mkpa idobe oghere nrụnye dị mma n'oge mmepụta na ịcha osisi ajị anụ;dabere na ọkpụrụkpụ nke keel nkwado nke ndị nrụpụta dị iche iche na-eji, na-ewepụtakarị 5-7mm.N'ezie nha nke bọọdụ ajị anụ ịnweta na-egosipụta nke ọma na ajị ịnweta akara ngosi.N'oge a, a ga-edobe oke nke akụkụ akara akara nke bọọdụ ajị anụ ịnweta, nke dị mma maka ntinye n'ezie.

Na n'ezie statistical ojiji, anyị na-akpọ size nke ịnweta ajị osisi na nominal size nke ịnweta ajị osisi, nke bụ ikwado n'ezie n'uko imewe na ojiji nke ịnweta ajị osisi.The nominal nha nke nkịtị ịnweta ajị osisi nkọwa bụ 300 * 600mm, 600 * 600mm, 600 * 1200mm.A na-ejikarị ihe ndị a eme ihe maka elu ụlọ ndị nkịtị.The 300 * 600mm nkọwa na-akasị eji maka ịnweta ajị mado osisi uko ụlọ;ugbu a, ndị ọzọ na-ewu ewu warara ịnweta ajị osisi Nominal nha bụ: 300/400/600mm*1200/1500/1800/2100/2400mm, wdg The ọkpụrụkpụ nke ịnweta ajị osisi na-emekarị 9mm, 14mm, 15mm, 16mm, 18mm, wdg ., dị ka ezigbo mkpa na ike mmepụta nke onye nrụpụta.19mm, 20mm, wdg.