Nws yog ib daim ntawv tiaj tus hlau uas yog nchuav nrog hlau, txias thiab nias.Nws yog tiaj, duab plaub, thiab tuaj yeem dov ncaj qha los yog sheared los ntawm dav hlau sawb.Hlau phaj yog muab faib los ntawm thickness, nyias steel phaj <4 hli (thinnest 0.2 hli), nruab nrab tuab steel phaj 4 ~ 6 ...
Nyeem ntxiv