1. Lub qhov rooj qhov loj qhov sib txawv yuav tsum tau ua raws li cov kev cai cuam tshuam.
2. Kev sib dhos tshem tawm ntawm cov khoom nyob ib sab ntawm lub qhov rooj thiab lub kiv cua thiab qhov siab sib txawv ntawm tib lub dav hlau yuav tsum ua raws li cov kev cai cuam tshuam.
3. Kev sib txuas ntawm cov khoom ntawm lub qhov rooj yuav tsum ruaj khov, thiab corrosion-cov ntaub ntawv uas tsis muaj zog yuav tsum tau siv los kaw thiab tsis muaj dej tsis zoo rau qhov txuas.
4. Cov qauv ntawm lub qhov rooj yuav tsum muaj kev txhim khu kev qha, thiab nws raug tso cai los tsim cov khoom siv ntxiv raws li xav tau.
5. The door frame and the fan are closely matched and the gap is even. The allowable deviation of the overlap width between the fan and the frame is ±1mm.
6. Cov khoom siv ntawm lub qhov rooj yuav tsum tau muab tso rau hauv qhov tseeb, ua tiav thiab ruaj khov, thiab yuav tsum ua raws li lawv lub luag haujlwm, muaj lub zog txaus, hloov tau yooj yim qhib thiab kaw yam tsis muaj suab nrov, thiab cov khoom siv uas tiv taus rov ua dua yuav tsum yooj yim hloov hauv cov qauv.
7. Qhov zoo ntawm cov khoom siv xws li iav, kho vajtse thiab cov ntsaws ruaj ruaj rau lub qhov rooj yuav tsum sib haum nrog qib zoo ntawm lub qhov rooj.
8. Qhov sib txuam loj ntawm lub phaj iav thiab lub qhov rooj iav zawj yuav tsum ua raws li cov kev cai cuam tshuam.
9. Tom qab sib dhos, qhov sib txawv ntawm lub iav thiab qhov zawj yuav tsum tau ua kom ntseeg tau, thiab kev poob siab -cov ntaub qhwv yuav tsum tau muab tso rau hauv cov khoom tseem ceeb, kom nws tuaj yeem cuam tshuam qhov cuam tshuam ntawm qhov qhib thiab kaw lub zog.
10. Qhov ntev yam tsis muaj kev zam txim yuav tsum ua raws li chav kawm kam rau ua JS15 (js15) tau teev tseg hauv GB 1804.
11. Yuav tsum tsis txhob muaj kev puas tsuaj rau qhov zoo nkauj ntawm lub qhov rooj.
12. Yuav tsum tsis muaj qhov pom tseeb xim txawv ntawm cov xim xim ntawm cov khoom nyob ib sab ntawm lub qhov rooj.
13. Yuav tsum tsis txhob muaj cov khoom seem ntawm txhuas, burrs, roj me ntsis lossis lwm yam stains ntawm lub qhov rooj, thiab yuav tsum tsis txhob muaj cov kua nplaum ntws tawm sab nraud ntawm kev sib txuas.