Tus nqi lag luam hauv khw muag khoom tau nce me ntsis, thiab Tangshan billet tau ua tus thawj coj hauv kev nce txij li hnub so. Ntawm lawv, qhov chaw ua lag luam hauv kev lag luam hlau tsim kho tau zoo dua qub, thiab qhov kev thov davhlau ya nyob twg thiab kev kwv yees tau nce ntxiv. Tus nqi hauv Beijing thiab Tianjin qis dua, thiab kev yuav khoom sab nraud kuj siab dua. Qhov ntim kev lag luam hauv East China tau nce ntxiv ntau dua li lub lim tiam dhau los. North China thiab East China ntawm cov hlau ntawv tau ua tau zoo dua, thaum lwm thaj chaw nruab nrab.
(Yog tias koj xav paub ntxiv txog xov xwm kev lag luam ntawm Steel Purlin, koj tuaj yeem tiv tauj peb txhua lub sijhawm)
Niaj hnub no, tus nqi tag nrho ntawm kev ua lag luam khoom siv hauv tsev hloov pauv ntau dua, thiab qhov kev hloov pauv tag nrho hauv yav tom ntej muaj zog dua. Tam sim no, sab kev thov hauv kev ua lag luam tau tso tawm qeeb qeeb, cov tub lag luam feem ntau xa khoom, thiab kev hloov pauv tus nqi luv luv yog txwv. Nws xav tias yuav khiav hauv kev poob siab tag kis.
(Yog xav paub ntxiv txog qhov cuam tshuam ntawm cov khoom siv hlau tshwj xeeb, xws li Galvanized Purlins, koj tuaj yeem tiv tauj peb)
Cov nqi khoom siv hauv tsev niaj hnub no tseem ruaj khov thiab sib sau ua ke, thiab kev lag luam tau txais. Txhawb nqa los ntawm kev nce ntawm coke ntawm qhov kawg ntawm cov khoom siv raw, tus nqi ntawm qhov chaw tsis poob thiab ruaj khov. Lub billet rov qab los ntawm 20 mus rau 4,550 yuan dhau lub asthiv. Nws khiav ruaj khov hnub no. Tus nqi ntawm cov hlau billet raug kaw ntawm 4,500 yuan ua ntej lub koob tsheej. Tus nqi tam sim no nyob ze rau tus nqi khaws cia ua ntej lub caij ntuj no hnub so, yog li cov peev txheej hauv kev ua lag luam muaj zog heev. Kev txaus siab rau tus nqi muaj zog, qhov cuam tshuam ntawm cov xwm txheej ceev sab nraud tau raug buffered, thiab kev ua lag luam tau maj mam tig mus rau qhov tseem ceeb. Nyob rau hauv lub neej yav tom ntej, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas kev hloov pauv ntawm kev muab khoom thiab kev thov thiab kev siv cov phiaj xwm npaj txoj cai. Nyob rau hauv lub sijhawm luv luv, kev hloov pauv yuav yog qhov tseem ceeb ntawm kev sib sau ua ke.
(Yog tias koj xav tau tus nqi ntawm cov khoom hlau tshwj xeeb, xws li Galvanized C Purlins, koj tuaj yeem tiv tauj peb kom tau txais kev hais nqe txhua lub sijhawm)