Tianjin Rainbow Steel e etsa square tube e leng mofuta oa tšepe e telele e nang le karolo e se nang letho 'me e se na moroko ho e potoloha.Ke asekwere tubee entsoeng ke extrusion ea seamless tube ka mahlakoreng a mane a lefu.Square tube e na le karolo e sekoti mme e sebelisoa haholo joalo ka phala bakeng sa ho tsamaisa mokelikeli.E sebelisoa haholo ho lipalangoang tsa metsi, tšehetso ea hydraulic, sebopeho sa mochini, khatello e mahareng le e tlase, phala ea boiler ea khatello e phahameng, phala ea phapanyetsano ea mocheso, khase, oli le liindasteri tse ling.E matla ho feta ho tjheseletsa mme ha e na crack.Hot rolled steel tubes e etsoa ka ho fetisa lakane ka lirolara ho fihlela litekanyo tse itseng tsa 'mele.Sehlahisoa se feliloeng se na le sepakapaka se mahoashe se nang le likhutlo tse nang le radius, le mohaho o nang le welded kapa o se nang seamless.Ho etsa li-tubing tsa tšepe tse kolobisitsoeng tse chesang ho kenyelletsa ho roala tšepe ka mocheso o fetang 1,000 Degree.