1. Ua tib zoo saib rau qhov chaw vuam: yog tias lub rooj zaum steel yog tus qauv hlau yuav tsum yog qhov chaw vuam, thiab cov txheej uas yuav tsum zoo nkauj thiab muag muag.
2, xyuam xim rau lub thickness ntawm cov yeeb nkab tuab: yog tias lub rooj zaum folding yog cov yeeb nkab alloy, cov tuab ntawm cov yeeb nkab steel yog li 1.2 mm, thiab tsis muaj impurity.
3, them nyiaj rau qib ntawm firmness: saib tag nrho cov duab zoo, koj tuaj yeem siv ob txhais tes kom co cov khoom rov qab thiab ua kom khov kho, thiab piav qhia kom khov kho, thiab piav kom thaiv nws.
4, them nyiaj rau qhov zoo ntawm daim ntaub: yuav ib tawv tuaj yeem siv ob - ntiv tes} ntiv tes} ntiv tes} ntiv tes muaj zog, zoo rov qab yog qhov zoo tshaj plaws
5, Sim zaum: Sim zaum thiab nkag siab txog nws cov kev nplij siab ntau, txhua lub kaum sab xis yuav tsum tau hloov, thiab tom qab ntawd, thiab tom qab ntawd, thiab tom qab ntawd yuav tom qab kev txiav txim siab.
 Folding - lub rooj zaum - nrog {} mesh- rov qab |  hnyav - duty - folding - lub rooj zaum |  oversized - folding - zaum |
