Lus piav qhia luv luv:
Khoom Siv Lub Tshuab Winding tshuab tsim los ntawm peb lub tuam txhab tshwj xeeb yog siv rau crimped lub kaum sab xis steel, channel steel, i-steel, ca steel, sab steel, round steel, thiab lwm yam., ntau hom sawb npaum cov khoom siv, thiab yuav siv tau rau thawj winding thiab kho cov txheej txheem ua haujlwm puag ncig.Dav siv nyob rau hauv roj av, tshuaj, hydropower, shipbuilding thiab machinery manuf ...