1. Kev tsim kho: Siv nyob rau hauv cov qauv kev ua haujlwm, kev txhawb nqa lub tsev, thiab kev txhawb nqa tuav.

2. Infrastructure: Ua hauj lwm hauv cov choj, cov tsev sib txuas lus, thiab cov kav xa hluav taws xob.

3. Kev tsim khoom lag luam: Siv rau hauv kev tsim cov tshuab, cov khoom siv ua haujlwm, thiab cov qauv kev txhawb nqa.

4. Kev thauj mus los: Siv nyob rau hauv kev tsim cov nkoj tsim, tsheb ciav hlau lem, thiab tsheb thav duab.

5. Ua Rooj tog: Siv rau cov rooj tog hlau hlau, txee txee, thiab lwm yam khoom siv.

6. Warehouse thiab Cia: Siv rau lub tsev racks, txee, thiab chaw cia khoom.

7.Fabrication:Siv nyob rau hauv ntau yam fabrication txheej txheem, nrog rau vuam thiab sib dhos ntawm hlau lug.

8. Hniav Elements:Siv nyob rau hauv architectural designs, railings, thiab lwm yam hniav nta.