Muaj ntau kev ua yeeb yam zoo heev raws li lub zog siab, siab nrawm, xws li siv hluav taws xob, xws li siv hluav taws xob, tshuab, hluav taws xob, tshuab khoom lag luam thiab kev lag luam tshuaj.
Cov ntawv thov tseem ceeb yog raws li hauv qab no:

1. TEJ TUAM

2. Cav qhov chaw nyob hauv qhov kub siab

3. Tej hub bearings

4. Metallurgical cov khoom hauv qhov kub siab

5. Tshuaj Corrosion-resistant thiab hnav-resistant seem

6. AERPACACE kev lag luam

7. Semiconductor kev lag luam

8. Lwm cov ntawv thov