Tolerans ki aplikab:
Dyamèt Eksteryè: ±0.005 pous (0.13 mm)
Epesè miray: +10% ~ -5%
Epesè miray la pa dwe varye plis pase 0.003 pous (0.08mm) sou yon longè 10 pye.
Longè: ±0.25 pous (6.4 mm)
Estanda: UL797-2000
Fini: Zenk plake, Pre-galvanize
Zenk kouvri: klas 3, 80-120 g/m2; klas 4, 275-500 g/m2
