Tsis ntev los no IFAN tau tsim kho HVAC cov khoom siv dej tshiab. Cov khoom siv khoom yog ua los ntawm CW617n tus phooj ywg ib puag ncig tooj liab, thiab txheej txheej txheej txheej txheej suav nrog cov xim ib txwm muaj xim, ua kom zoo zoo txhuam xim, xim kasfes, xim xim, kub kub, thiab lwm yam.
1. Kev ua tau zoo-tus nqi sib piv, tus nqi qis, cov khoom lag luam tshiab tsim los ntawm Fengfan 2020, cov txiaj ntsig me me tab sis kev hloov pauv sai;
2. Lub teb chaws hom, ua nyob rau hauv Suav teb
3. Lub npe nrov tau xa tawm mus rau 118 lub tebchaws hauv ntiaj teb;
4. Qhov tawg-pov thawj tsim ntawm cov yeeb nkab sib txuas yog tiv taus kom siab dua;
5. Qhov zoo yog ruaj khov, cov zis loj, kev xa khoom tau ruaj khov, txheej txheem electroplating yog qhov zoo, qhov zoo yog qhov zoo, kev ntaus ntawm tooj liab tau meej, thiab ntim tau zoo heev
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