Ibikoresho by'icyuma ni ibintu bitarimo amavuta make ya karubone.Uburyo bwa tekiniki yo gukora imiyoboro ni ERW isudira hamwe na longitudinal seam.Ibipimo byibicuruzwa birashobora kubahiriza ASTM A500, ASTM A53, ASTM A795, BS1387, BS EN10255, EN 10219, BS 1139, BS 39.