Vim li cas qee cov kav hlau galvanized khoov ntau dua tom qab dej txias?

Thaum cov kav hlau galvanized nrog qhov kub ntawm ib ncig ntawm 300-350 degree raug xa mus rau hauv dej los ntawm cov saw hlau, qhov ceev tsis tuaj yeem ceev heev. Vim yog lub hauv paus longitudinal curvature ntawm kub galvanized steel kav, lawv yuav tsis tuaj rau hauv kev sib cuag nrog cov dej txias nyob rau tib lub sij hawm raws lawv tag nrho ntev. Yog li ntawd, qhov chaw ntawm cov yeeb nkab uas thawj zaug tuaj rau hauv kev sib cuag nrog cov dej txias tau txais kev cog lus sai, ua rau cov yeeb nkab khoov. Txawm tias tom qab tag nrho cov galvanized steel yeeb nkab yog submerged hauv dej, nws tsis tuaj yeem kho kom zoo. Qhov no yog vim li cas galvanized steel kav yuav zoo li khoov hnyav dua tom qab dej txias.