Ka hangaia te karekau ma te huri i te taha o waho, i te kohao ranei o te hua patea, kua oti ranei hei tapa poutū ma te taha o tetahi pihi.E ai ki te ahua o te patea me te taha o te mea mahi, ka taea te wehewehea te flanging ki roto i te poka o roto (poka porohita, poka kore porohita ranei) flanging , rererangi mata o waho flanging me flanging mata kōpiko, etc. Ka taea e Flanging whakakapi te tukanga tuhi hohonu o etahi waahanga uaua, whakapai ake i te rere kirihou o te rauemi kia kore e pakaru, korukoru ranei.Ka taea e matou te whakarato i te waro waro flanging, koranu flanging, kowiri tira flanging Edges etc enei hua ū ki ASME B16.9, ISO, API, EN, DIN, BS, JIS, GB etc.