16. Dab tsi sim ua siab siab- zaus} zaus welded steel kav yuav tsum ua?
15. Yuav ua li cas kom ntseeg tau qhov zoo ntawm qhov siab- zaus watded steel kav hlau?
14. Yuav ua li cas ua kom tswj tau zoo ntawm high- zaus} zaus watded steel kav?
13. Dab tsi yog lwm txoj hauv kev vuam?
12. Yuav ua li cas yog siab- zaus} zaus Welded Steel Yeeb Nkab Tsim?
11. Cov khoom siv twg xav tau rau kev tsim cov khoom lag luam siab- zaus watded steel kav?
10. Dab tsi raw cov ntaub ntawv xav tau rau high- zaus watded steel kav hlau?
9. Vim li cas thiaj siab- zaus vuam? Dab tsi yog cov yam ntxwv ntawm high- zaus vuam?
2. Cov ntawv dav dav ntawm high- zaus welded steel yeeb nkab raug
Qhov thib ob ntawm Welded Yeeb Raug Tshooj 1. Ntsug Txiav
NTU 3 hom, cov lus qhia tshwj xeeb, cov yam ntxwv thiab siv cov kav hlau steel
Peb. Kev Koom Tes Thoob Ntiaj Teb