Marka ay timaado alwaaxyada birta, waxaa jira dhowr ciyaaryahan oo waaweyn oo warshadaha ah, oo ay ku jiraan Royal Steel Corporation ee Shiinaha.Waxaan bixinaa noocyo kala duwan oo badeecooyin bir ah oo ay ku jiraan ASTM alwaaxyada flange ballaaran iyo A992 flange ballaaran H-beam sida W4x13, W14x82, iyo W30x132....
Akhri wax dheeraad ah