Seamless steel yeeb nkab yog cov hlau ntev nrog ntu hollow thiab tsis muaj nqaws ib puag ncig nws. Cov yeeb nkab steel muaj cov kab hla thiab tau siv dav hlau rau kev thauj cov dej, xws li cov raj xa dej rau kev thauj cov roj, roj, dej, thiab qee cov ntaub ntawv siv. Piv nrog cov khoom siv hlau xws li cov hlau hloov pauv, cov yeeb nkab steel yog sib dua hauv qhov hnyav thaum nws muaj lub zog zoo ib yam nkaus. Nws yog ib qho kev lag luam hla hlau. Nws yog dav siv nyob rau hauv kev tsim cov txheej txheem txheej txheem thiab cov tshuab siv tshuab, xws li roj av pas dej, thiab caij tsheb kauj vab. Thiab steel scaffolding siv hauv kev tsim kho tsim.
Kev siv cov kav hlau hlau ua chaw tsim khoom txhua qhov tseem ceeb tuaj yeem txhim kho cov ntaub ntawv siv, ua kom cov sijhawm ua haujlwm, thiab lwm cov sijhawm ua haujlwm, thiab lwm cov sijhawm tau siv dav rau kev tsim khoom. Cov yeeb nkab steel tseem yog cov khoom siv hluav taws xob tsis tseem ceeb rau ntau yam riam phom, thiab cov thawv, txhuv, thiab lwm yam. Cov leeg hlau yuav muab faib ua cov hlab thiab cov raj tshwj xeeb raws li cov duab sib txawv ntawm cov duab.
Txij li thaj tsam ncig yog qhov loj tshaj plaws nyob rau hauv cov xwm txheej ntawm sib npaug puag ncig, haus dej ntau tuaj yeem thauj tau los ntawm cov raj sib dhos. Ib qho ntxiv, thaum cov ntoo khaub lig ntawm lub nplhaib yog raug rau sab hauv lossis sab nraud hluav taws xob, lub zog yog cov khaub ncaws ntau dua. Yog li ntawd, feem ntau cov kav hlau feem ntau yog cov kav dej sib hloov. Txawm li cas los xij, kav kav kav kav tseem muaj qee qhov kev txwv. Piv txwv li, nyob rau hauv cov xwm txheej ntawm kev khoov hauv dav hlau, cov kav dej ncig tsis muaj zog li square lossis duab plaub. Qee cov tshuab tshuab ua liaj ua teb, hlau-ntoo rooj tog, thiab lwm yam siv rau cov kav dej square thiab duab plaub.
Lub sij hawm Post: Dec-13-2019