TRM tuaj yeem muab faib rau pob zeb hauv Suav teb

Nyob zoo Manager,

Nyob zoo thiab zoo siab tau paub koj.

Peb yog cov kws tshaj lij Mining khoom Hoobkas, hauv daim teb no tshaj 30 xyoo.

Peb cov khoom tseem ceeb yog raws li nram no:

1).Split teem rau pob zeb (Friction Bolt Stabilizer)

2).Welded khoom (Ua raws li koj daim duab)

3).Lwm yam deives rau ming thiab qhov