Kos npe rau daim ntawv cog lus muab khoom ntawm ob lub hom phiaj kev tiv thaiv ib puag ncig galvanized kab ntawm cov yeeb nkab steel / steel qauv nrog cov neeg siv khoom Indonesian

Thaum Lub Kaum Hli Ntuj xyoo 2017, peb tau kos npe rau daim ntawv cog lus muab cov yeeb nkab hlau / cov qauv hlau ob lub hom phiaj tiv thaiv ib puag ncig galvanizing kab nrog cov neeg siv khoom Indonesian;