1. Txheeb xyuas cov welds: Yog tias lub rooj zaum folding muaj cov ncej steel, xyuas kom cov welds du thiab tsis muaj qhov khoob, thiab cov txheej zoo li du thiab du.
2. Tshawb xyuas cov raj steel tuab: Yog tias lub rooj zaum folding siv cov raj aluminium alloy, xaiv cov raj nyob ib ncig ntawm 1.2 hli tuab thiab tsis muaj impurities.
3. Txheeb xyuas qhov ruaj khov: Tshawb xyuas qhov zoo ntawm tus ncej. Tuav lub rooj zaum rov qab thiab tawm ntawm ob txhais tes mus rau sab; ib lub thav duab khov kho qhia tau hais tias tus ncej zoo.
4. Txheeb xyuas qhov zoo ntawm lub upholstery: Thaum muas tawv upholstery, pinch ib seem nrog koj lub ntsis ntiv tes thiab rub upwards. Kev xav muaj zog, ua haujlwm zoo qhia tau hais tias muaj cov khoom zoo -.
5. Sim zaum ntawm nws: Sim zaum ntawm koj tus kheej kom ntsuas nws qhov kev nplij siab. Hloov cov ces kaum mus rau ntau txoj haujlwm ua ntej yuav khoom.
