Tsis ntev los no, kev lag luam tus nqi ntawm cov yeeb nkab welded thiab galvanized yeeb nkab hauv cov nroog loj hauv Suav teb tau nyob ruaj khov, thiab qee lub nroog tau nqis los ntawm 30 yuan / tuj. Raws li kev tshaj tawm, tus nqi nruab nrab ntawm 4-nti * 3.75mm welded yeeb nkab hauv Suav teb tau poob los ntawm 12 yuan / ton piv nrog nag hmo, thiab tus nqi nruab nrab ntawm 4-nti * 3.75mm galvanized yeeb nkab hauv Suav teb tau poob los ntawm 22. yuan / ton piv nrog nag hmo. Kev lag luam kev lag luam yog qhov nruab nrab. Nyob rau hauv cov nqe lus ntawm kev hloov nqi ntawm cov yeeb nkab factories, lub ex Hoobkas teev nqi ntawm welded kav nyob rau hauv mainstream yeeb nkab factories raug txo los ntawm 30 yuan / tuj piv nrog nag hmo. Tam sim no, qhov kev thov hauv Shanghai tau maj mam rov qab los tom qab rov pib ua haujlwm. Txawm li cas los xij, vim los nag hnyav rau lub Rau Hli, kev lag luam xav tau hauv ntau qhov chaw xws li ob lub pas dej tsis muaj zog, thiab tag nrho cov kev xav tau qis qis tseem qis. Hauv tsev welded yeeb nkab kev sib raug zoo cov khoom lag luam txuas ntxiv mus rau lub lim tiam no, thiab cov tub lag luam xa khoom tsis zoo. Niaj hnub no, cov dub series yav tom ntej tau poob qis dua, thiab qhov kev tsis sib haum xeeb ntawm qhov kev thov rov qab los ntawm kev loj hlob tsis tu ncua ntawm kev ua lag luam thiab qhov tsis txaus cov yeeb nkab steel qhov xav tau tseem yog qhov tseem ceeb. Nyob rau hauv cov nqe lus ntawm raw cov ntaub ntawv, qhov chaw tus nqi ntawm Tangshan 355 tau tshaj tawm ntawm 4750 yuan / tuj hnub no, uas yog ruaj khov dua ua ntej. Tam sim no, Tangshan sawb steel cog tau rov pib tsim khoom, thiab kev siv peev txheej tau nce ntxiv. Txawm li cas los xij, qhov kev thov tiag tiag tsis zoo, uas tau maj mam nce siab ntawm Tangshan strip steel cov khoom muag. Nrog rau qhov nce ntawm cov khoom, qhov kev thov tau tso tawm maj mam. Tag nrho cov khoom siv thiab kev thov tsis sib haum ntawm sawb steel yog ntse. Nws yog qhov nyuaj rau tus nqi lag luam kom muaj lub zog nce siab, thiab tus nqi tseem yuav poob. Yog li ntawd, nws cia siab tias tus nqi lag luam ntawm cov kav dej hauv tsev thiab cov yeeb nkab galvanized yuav nce ntxiv rau lub lim tiam tom ntej raws li qhov tsis txaus siab ntawm kev thov tsis zoo rau cov yeeb nkab welded thiab poob ntawm raw steel sawb. Qhov kev thov rau cov kav hlau thoob ntiaj teb tau ruaj khov heev, yog li peb tuaj yeem siv lub sijhawm no los yuav ntau dua.