China opanga mitengo ya China aluminiyamu oxide minda yochezera

Sandpaper ndi chinthu chofunikira kwambiri, ndipo chimagwiritsidwa ntchito kwambiri mitundu yosiyanasiyana monga mafoni am'manja, magalimoto, ndi zinthu zamatabwa. Komanso, sandpaper amatenga gawo lofunikira pakumanga. Sandpaper nthawi zambiri amagawidwa mu sandpaper wowuma, sandpaper wamadzi, ndi santepe sanpaper. Mfundo zawo zodziwika ndi kugwiritsa ntchito manyolo kuti azigwirizana ndi abrasions osiyanasiyana. Chitsamba cha mchenga limodzi ndi cholimba, tinthu tating'onoting'ono tomwe timapindika.
Kusiyana kwa michere ya sandpaper wamadzi kumakhala kochepa kwambiri poyerekeza ndi sandpaper wowuma, ndipo zinyalala zomwe zimapangidwa ndi zopukutira ndizochepa. Mukamagwiritsa ntchito madzi, zinyalala zidzatuluka ndi madzi, kenako lakuthwa kwa ntchito ya sandpaper imasungidwa