Cov yam ntxwv ntawm Kauv Pile: 1. Raws li ISO 1461: 1999 kub dip galvanizing specification, raws li ib puag ncig thiab cov neeg siv khoom xav tau xaiv cov khoom sib txawv. Cov hlau yuav tsum tau ua los ntawm cov khoom tsim los ntawm cov tuam txhab hlau loj thiab cov hlau, thiab cov hlau tsis siv dua yuav tsum tsis txhob siv. Txhawm rau kom ua tiav cov txiaj ntsig zoo, kev ua raws li kev tswj hwm nruj.
