A na-ejikarị ya maka njikọ na ntinye n'etiti ngwá ụlọ.
Yabụ kedu ụdị skru arịa ụlọ?
1. kposara maka osisi, na-akpọkarị fiberboard kposara.Enwere ike kewaa skru fiberboard n'ime ezi ezé na ezé siri ike, nwere na enweghị ọgịrịga.N'ozuzu, ezé dị n'ebe ugwu na-aba ụba karịa ezé dị gịrịgịrị, ebe ezé ndị dị n'ebe ndịda dị oke.Ihe mkpuchi fiberboard na ụdị osisi dị iche iche bụ ndị enyemaka kacha mma maka arịa ụlọ N'onwe Gị.A na-eji ya dị elu nke siri ike (mgbe ọgwụgwọ okpomọkụ gasịrị), eriri miri emi kwesịrị ekwesị maka ijikọta osisi, dị mfe iji, obere nha na-enweghị oghere ndị a na-emepụta ihe nwere ike ịkụnye ya ozugbo n'ime osisi, nnukwu oghere nwere ike ime.Buru ụzọ lee ezé ndị dị gịrịgịrị na-enweghị akwara.
2. Osisi ịghasa, a ụdị ọrụ dị arọ osisi ịghasa, eji maka ijikọ osisi na ígwè efere Rịba ama: ebe a bụ ịghasa osisi, hexagonal isi, n'ozuzu anyị adịghị mkpa, tumadi eji maka njikọ n'etiti nnukwu olu nke osisi na ígwè.
3. Tapping ịghasa na elu hardness, obosara eri spacing, miri eri, elu adịghị mma, osisi ịghasa n'ụzọ megidere, ọzọ dị iche bụ ọzọ doro anya, osisi ịghasa azụ enweghị eri.Ihe kposara osisi dị gịrịgịrị, tụọ aka ma dịkwa nro.Ihe nkedo ịpịa dị oke, nkọ ma sie ike.
