1. Kev kho cua sov: hauv zos lossis tag nrho quenching, analing, temaleing, thiab diathermy ntawm ntau yam hlau;
2. Kub txoj kev sib sau: tag nrho Forging, ib feem forging, kub taub hau, kub dov;
3. Vuam: Brazing ntawm ntau yam tsiaj hlau, tawg ntawm ntau cov kab hlau, tshuab tooj liab, vuam ntawm tib yam ntawm cov sib luag ntawm cov kab sib luag;
4. Hlau SMELTING: (Lub Tshuab Nqus Tsev) smelting, casting thiab evaporation txheej kub, nyiaj, tooj, txhuas thiab lwm yam hlau;
5. Lwm cov kev siv ntawm cov cua sov tshuab hluav taws xob, tshuaj txhuam hniav ib zaug li, cov tshuaj txhuam hniav kub zom, cov hmoov txheej, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog, hlau cog,