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Iwo chaiwo anoenderana zviyero ndeaya anotevera:
An4: dhayamita yemukati = 5.56mm, dhayamita yekunze = 11.18mm;
An6: dhayamita yemukati = 8.7mm, dhayamita rekunze = 13.97mm;
An8: dhayamita yemukati = 11.11mm, dhayamita rekunze = 16.26mm;
An10: dhayamita yemukati = 14.2mm, dhayamita yekunze = 20.32mm;
An12: mukati dhayamita = 17.46mm, kunze dhayamita = 23.50mm;
An16: dhayamita yemukati = 22.23mm
Ongorora: nekuti iyo yemukati chubhu iNBR rubber chubhu uye elastic, zvakajairika kuti data yakayerwa ive nekumwe kushivirira (Kunyangwe zvigadzirwa zvesimbi zvinoshandiswa mumaroketi emuchadenga zvine kushivirira, ndapota nzwisisa).
Ona chinyorwa ID patafura inotevera kuti uwane ruzivo (iyo unit yekoramu ID inchi, uye kana ikashandurwa kuita metric system, inoda * 25.4mm, inova iyo metric data pamusoro)