Hongjin PCT kev kub siab ceev ceev kev laus lub tshuab kuaj xyuas qhov ua tau zoo ntawm cov khoom thaum lub sijhawm khaws cia, kev thauj mus los thiab siv nyob rau hauv qhov kub thiab txias, kub, av noo thiab siab huab cua ib puag ncig.Nws yog tsuas yog siv rau hluav taws xob engineering, hluav taws xob khoom, compone ...
Nyeem ntxiv