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