Taw qhia: Hauv thaj tsam ntawm kev tsim cov hlau, Royal Group sawv sib nrug raws li cov chaw tsim khoom muaj npe nrov thiab cov khoom lag luam ntawm cov hlau galvanized saum toj kawg nkaus.Nrog cov kws tshaj lij hauv kev tsim cov coils zoo xws li kub-dip galvanized ntawv kauj, SECC galvanized steel kauj, Dx5 ...
Nyeem ntxiv