Vim li cas peb yuav tsum tswj lub tawb kaw
Lub tawb kaw yog txias txias thiab tsim rau hauv cov semi-tiav mesh los ntawm tsoo pob. Tom qab cov xaim ntim tau tsim, qhov chaw khaws cov kab mob tuaj yeem ua rau saum npoo los ntawm galvanizing lossis tshuaj pleev xim txheej (feem ntau ntawm cov khoom siv khaws cia yog galvanized), thiab tom qab kev kho saum npoo, kev sib dhos tuaj yeem nqa tawm, thiab thaum kawg cov khoom tiav yog tsim.