Txhuas cov hnab yas tau ua txhua yam khoom txhua hnub, tshwj xeeb tshaj yog nyob rau hauv tsev kho mob thiab lwm qhov chaw siv ntau dua, txhuas qhwv hnab kuj muaj ntau lub ntim, yuav ua li cas nws thiaj paub qhov teeb meem ntawm qhov teeb meem?
1, tsos: noj cov khoom no, ci ntsa iab ntuj, lub ntsej muag mus txog ntawm qhov muag. Yuav tsum tsis muaj kev pleev xim, txawv teb chaws, adhesion, sib cais txheej sib cais, pom kev puas tsuaj, npuas, wrinkles, av; nplaum lub thawv kub thaij sab nrauv yuav tsum tsis du tsis sealing, qhib yooj yim qhib.
2, qhov loj: siv 5m steel daim kab xev ntsuas qhov dav thiab qhov siab ntawm qhov hnoos qis, thiab mam li ntsuas qhov hnyav ib txheej tuab ntawm cov chaw digital micrometer (specifications: 0 ~ 25mm). Cov ntawv ntsuas yuav tsum yog 110 ± 2mm hauv dav, 150 ± 5mm siab, thiab 0.08 + 0.008 hli ib txheej tuab.
