... plants, railways, highways, sewage treatment plants, water supply, mining, steel, petrochemicals, airports, terminals and other types of civil construction industries ... 253/90/400)S-GCement Column, beam, unclosedOTW(253/90/400)SB-GCement Column, beam, unclosedOTW(253/90/400)C-GSteel ... closed, Iron wire meshOTW(253/90/400)CSW-GSteel Pillar, beam, unclosed, Iron wire meshOTW(253/90/400)CSBW-GSteel Pillar ...