Kos npe rau daim ntawv cog lus ntawm ob lub hom phiaj Kev tiv thaiv ib puag ncig tiv thaiv galvanized kab ntawm cov neeg siv khoom steel / hlau qauv nrog cov neeg lag luam Indonesian

Nyob rau lub Kaum Hli 2017, peb kos npe rau kev cog lus steel hlau / hlau qauv dual-lub hom phiaj ib puag ncig muaj kev tiv thaiv galvanizing galvanizing galvanizing cov neeg siv khoom hauv Indonesian;