Xov xwm

1. Ob qhov tseem ceeb sib txawv (1) Cov ntsiab lus ntawm cov hlau txias txias: txias dov hlau yog cov hlau uas ua los ntawm txias dov. Txias dov yog ntxiv nyias cov hlau phaj ra...

1. Vuam txoj kev Kub dov thiab normalized steels tsis muaj kev tshwj xeeb rau vuam txoj kev thiab yog haum rau ntau yam vuam txoj kev, xws li shielded hlau arc vuam, submerged a...

Ua ntej, cov ntaub ntawv raw rau kev kub kub galvanizing ntau lawm los ntawm kub dov steel sawb; Qhov thib ob yog los soj ntsuam los ntawm kev xaav ntawm cov khoom siv txheej tx...

Kub dov hlau yog dov los ntawm cua sov ntawm qhov kub thiab txias. Nws lub zog tsis yog siab heev, tab sis nws tuaj yeem ua tau raws li peb cov kev xav tau. Nws muaj zoo plastic...