(1)Gishiri waldiza a iya raba dogon radius butt walda gwiwar gwiwar hannu da gajeren radius butt walda gwiwar gwiwar hannu bisa ga radius na curvature. Radius na curvature na dogon radius butt walda gwiwar gwiwar hannu yayi daidai da sau 1.5 na waje diamita na bututu, wato R=1.5D. Radius na curvature na gajeren radius butt walda gwiwar gwiwar hannu daidai yake da diamita na waje na bututu, wato R=1D. A cikin dabarar, D shine diamita na gwiwar gwiwar gindin walda, kuma R shine radius na curvature. Idan babu bayanin musamman, ana amfani da gwiwar gwiwar 1.5D gabaɗaya.
(2) A cewar matsi na matsin lamba, akwai kusan nau'ikan bakwai, waɗanda iri ɗaya ne da ka'idodin bututun Amurka, sun cika, Sch00, Sch00, Sch80, Sch80s, Sch80s, Sch80s, Sch80s, Sch80s, Sch80s, Sch80s, Sch800, Xs; Sch80, Sch100, Sch120, Sch140, Sch160, XXS, wanda aka fi amfani da su shine STD da XS.
(3) Dangane da kusurwar gwiwar hannu, akwai nau'in walda na gindi 45-digiri, ginshiƙan walda mai digiri 90, ƙwallon ƙafar gindi mai digiri 180 da sauran kusurwoyi daban-daban.
(4) Kayan aiki sune: carbon karfe, gami karfe da bakin karfe.
Lokacin aikawa: Yuli-24-2022