A na-eme YIHO Pulley lagging site na narị otu narị iberibe seramiiki n'otu n'otu na-adaba n'ime efere rọba na-adịgide adịgide, tile seramiiki ọ bụla etinyere ewelitela dimples maka nguzogide abrasion. traction iji gbochie ntọhapụ, ịgbatị ndụ nke ihe na-ebuga rola.
Nke na-eme ka mbanye roller ndụ ugboro iri karịa nke mbụ drum .N'otu oge ahụ, nke ọ bụla seramiiki mpempe akwụkwọ nwere grooves spaced na a ụfọdụ anya, na-enyere mba ọzọ okwu dị ka ájá, unyi na drum atara tinyere trenchi, nke na-eme ka drum na a pụrụ iche ọrụ nhicha onwe, karịsịa adabara maka mmiri mmiri na-arụ ọrụ gburugburu ebe obibi.Alumina seramiiki mosaic tile nwere dị iche iche nha dị.