Letlapa le entsoeng ka masenke le entsoe ka lakane e koahetsoeng ka 'mala le lakane ea masenke' me e sebetsoa ke Mochini oa Roll Forming.
Botenya:0.12mm-0.6mm
Bophara:600mm-1050mm
Bolelele:1.8m ho isa ho 12m
Ho ea ka libopeho tse fapaneng, haholo-holo e arotsoe ka lithaele tse bōpehileng joaloka T, lithaele tse entsoeng ka masenke, lithaele tse bentšitsoeng joalo-joalo.
Ho ea ka lisebelisoa tse fapaneng tsa tšepe, e ka aroloa ka lilakane tse nang le mebala e koahetsoeng, lilakane tse chesang tse kenngoeng ka masenke le marulelo a galvalume.