Hana ʻo Tianjin Rainbow Steel i ka paipu huinahā ʻano ʻano kila lōʻihi me ka ʻāpana ʻāwaha a ʻaʻohe humu a puni.He apaipu huinahalikehana ʻia ma ka hoʻokuʻu ʻia ʻana o ka paipu liʻiliʻi ma nā ʻaoʻao ʻehā o ka make.Loaʻa ka ʻāpana hollow i ka pahu square a hoʻohana nui ʻia ma ke ʻano he paipu no ka lawe ʻana i ka wai.Hoʻohana nui ʻia ia i ka halihali wai, kākoʻo hydraulic, mechanical structure, medium and low pressure, high pressure boiler pipe, heat exchange pipe, gas, aila a me nā ʻoihana ʻē aʻe.ʻOi aku ka ikaika ma mua o ke kuʻi ʻana a ʻaʻole crack.Hot rolled steel tubes is made by pass sheet metal through rollers to achieve specific physical dimension.ʻO ka huahana i hoʻopau ʻia he ʻili ʻili a me nā kihi radiused, a i ʻole kahi hana welded a ʻole.ʻO ka hana ʻana i nā paipu kila pāhaʻi wela e pili ana i ka ʻōwili ʻana i ke kila ma nā mahana ma mua o 1,000 Degree.