Chitoliro chachitsulo cha carbon ndi chinthu cholimba chopangidwa kuchokera ku chitsulo cha carbon.
CHS Steel Pipe Standard: ASTM A53, API 5L, ASTM A252, ASTM A795, ISO65, DIN2440, BS1387.BS1139, EN10255, EN39, JIS3444, GB/T 3091 & GB/T13793
RHS SHS Steel Pipe Standard: ASTM A500, EN10219, EN10210, JIS3466, GB/T 6728
Ntchito: Zomangamanga / zomangira zitsulo chitoliro, Kamangidwe Zitsulo, mpanda positi zitsulo chitoliro,
Chitoliro chachitsulo, chitoliro chachitsulo chachitetezo chamoto, chitoliro chachitsulo chowonjezera kutentha, madzi otsika, madzi, gasi, mafuta, chitoliro chamzere, chitoliro chothirira, chitoliro cha Handrail