Iiflene zensimbi zibonelela ngokufikelela ngokulula ekucoceni, ukuhlola okanye ukulungiswa. Zihlala zingena kwimilo ejikelezayo kodwa zinokuza ngesikwere nakwiifom zoxande. I-flanges idityaniswe omnye komnye ngokuhlamba kwaye yajoyina inkqubo yokufaka i-welding okanye intambo kwaye yenzelwe imilinganiselo yovavanyo oluthile; I-150lb, i-300lb, 400lb, i-600lb, i-900lb, i-1500lb kunye ne-2500lb.
Kwiimeko ezinobunkunkqele ngokwaneleyo ukubangela i-ilrosion ye-ilds kunye nemimandla echaphazelekayo, ezi kufuneka isebenzise i-sthy s31600 i-ST3600 \ / s36603 \ / s3603 eyimfama ngenxa yomxholo wekhabhoni esezantsi.