1. Saib xyuas cov vuam: Yog tias lub rooj zaum Folding yog cov qauv hlau kos duab yuav tsum tau du thiab dawb ntawm cov khoob, thiab cov txheej yuav tsum saib txawm thiab muag.
2. Ua tib zoo rau lub thickness ntawm cov yeeb nkab hlau: yog lub rooj zaum folding yog cov yeeb nkab txhuas, cov yeeb nkab steel nrog li 1.2mm thiab tsis muaj kev cuam tshuam zoo dua.
3. Ua tib zoo mloog mus rau qib ntawm firmness: saib ntawm qhov zoo tag nrho ntawm tus ncej. Siv ob txhais tes tuav cov khoom txij pem hauv ntej rov qab, ntawm sab laug rau sab xis, khov kho qhia tias tus ncej zoo
4. Ua tib zoo saib daim ntaub qhwv daim ntaub: tawv tus neeg ua si tuaj yeem tuav ib qho chaw nrog ob lub ntsis ntiv tes thiab rub nws. Tus kov yog muaj zog thiab rov qab yog qhov zoo
5. Sim mus zaum: sim zaum hauv tus neeg kom nkag siab txog qib kev nplij siab ntawm nws. Hloov txhua lub kaum sab xis, thiab yuav khoom tom qab tau lees paub.
