Dab tsi ntawm cov khib nyiab yog lub khob lauj kaub khob? Ntau tus phooj ywg tsis meej, iav npog cov editor nram qab no yuav coj koj cov lus qhia ntxaws ntxaws. Lub khob hau yog cov khib nyiab uas rov ua dua tshiab. Lub hau feem ntau puag ncig nrog lub pob nyob hauv nruab nrab.
Qhov kev ntxhib los mos ntawm lub hau lauj kaub feem ntau ntoo hauv lub sijhawm qub, iav iav tab sis tam sim no feem ntau ua los ntawm cov hlau. Aluminium yog hom. Tseem muaj lub hau lauj kaub ua los ntawm cov nyom zoo ib yam li cov kaus mom quav hauv Yunnan.
Cov khoom siv rov ua dua xa mus rau cov ntawv pov tseg, pov tseg cov plua plav, cov khoom pov tseg iav, cov hlau pov tseg, cov iav ntim pov tseg cov ntaub ntim khoom thiab lwm cov khoom pov tseg hauv tsev uas tsim nyog rau kev rov ua dua tshiab thiab rov ua dua tshiab. Hauv Shanghai' s cov txheej txheem cais cov khib nyiab, iav npog lub hau npog yog cim ua cov khoom siv tau dua tshiab.
