Cov paib hlau tau muab faib ua ob hom: nyias daim hlau thiab cov hlau tuab. Nyias Hlau Phaj <4 mm (lub thinnest 02 hli), tuab hlau phaj 4 ~ 60 mm, ntxiv tuab hlau phaj 60 ~ 115 hli.
Cov ntawv txheeb steel tau muab faib ua kub-dov thiab txias-dov raws li dov.
Daim nyias nyias hlau phaj yog ib lub phaj steel nrog lub tuab ntawm 0.2-4mm tsim los ntawm kub dov lossis dov los yog dov. Qhov dav ntawm daim nyias nyias phaj yog nruab nrab ntawm 500-1800mm. Ntxiv rau kev xa khoom ncaj qha tom qab dov, cov ntawv nyias nyias yog tseem pickled, galvanized thiab tinned. Raws li kev siv sib txawv, daim nyias nyias steel phaj yog dov los ntawm billets ntawm cov khoom sib txawv thiab qhov dav ntawm daim phaj nyias yog 500 ~ 1500 hli; Qhov dav ntawm cov ntawv tuab yog 600 ~ 3000 mm. Cov ntawv txheeb tau faib ua ke raws li cov hlau sib koom ua ke, cov hlau zoo li qub, cov hlau, steel-resistant steel, cua sov steel, silical hlau ntawv, thiab lwm yam .; Raws li kev siv kev tshaj lij, muaj cov roj nruas daim phiaj, txham phaj, bellerproof phaj, thiab lwm yam; Raws li cov txheej txheem saum npoo av, muaj cov ntawv galvanized, tin-plated ntawv, txhuas daim ntawv txhuas, yas sib xyaw ua ke steel phaj, thiab lwm yam.
Tuab steel phaj yog lub sijhawm dav dav rau cov phiaj hlau nrog cov tuab ntawm ntau tshaj 4 hli. Hauv kev ua haujlwm ua haujlwm, cov phaj hlau nrog cov phaj tuab ntawm tsawg dua 20mm feem ntau hu ua cov tuab ntawm> 60mm yuav tsum tau ua nws yog siv lub phaj hnyav hnyav. Qhov dav ntawm tuab hlau phaj yog los ntawm 1800mm-4000mmm. Cov paib tuab tau muab faib ua ke ua cov hlau nkoj, cov hlau kav hlau, cov hlau loj steel, cov hlau ntim tsheb hlau, cov hlau sib xyaw ua ke raws li lawv siv. Tus qauv hlau ntawm cov tuab tuab steel phaj feem ntau yog tib yam li ntawm cov nyias hlau phaj. Nyob rau hauv cov nqe lus ntawm cov khoom, ntxiv rau cov paib hlau phiaj, boiler hlau daim hlau, cov hlau tuab), cov khoom siv ntshiab), kub-resistant steel hlau thiab lwm yam ntau yam tau sib tshuam nrog daim hlau nyias.
