a) Yenziwe nge-nylon.
b) Umzimba ongaqhubiyo, osetyenziswa ukutshixa iindawo zokwahlukanisa umbane ezifunekayo kwiindawo ezirhabaxa okanye ezingenakuqhushumba.
c) Inobubanzi be-shackle obuyi-3mm okanye i-6mm.
| Inxalenye INOMBOLO. | Inkcazo |
| NH04 | Ubungakanani obupheleleyo: 61.5×105mm, yamkela ukuya kuthi ga kwiitshixo ezine. |
| NH05 | Ubungakanani obupheleleyo: 61.5×106mm, yamkela ukuya kuthi ga kwiitshixo ezine. |

