1, feem ntau nyob rau hauv kev yuav khoom yuav tsum tau soj ntsuam cov tsos ntawm tooj liab los txiav txim, ua ntej ntawm tag nrho cov, yog mus saib cov xim ntawm cov yeeb nkab tooj liab, raws li hom ntawm cov yeeb nkab tooj liab yuav los ua txawv xim txiav txim, xws li ntshav. tooj liab yeeb nkab, cov xim dav dav ntawm cov xim liab liab liab yog cov tooj liab zoo, cov tooj liab tsis zoo muaj impurities hauv.
2, feem ntau zoo tooj liab yeeb nkab yog ua tiav siv cov tooj liab ntshiab, yuav muaj qhov zoo dua ntxiv, yog li cov yeeb nkab zoo tooj liab yuav muaj kab sib sib zog nqus tshwm. Tom qab khawb hauv cov yeeb nkab tooj liab, yog tias nws zoo ib yam li cov phab ntsa sab nrauv, nws yuav qhia tau tias tag nrho qhov zoo ntawm cov khoom siv tooj liab no yog siab dua. Tab sis yog tias xim lossis lwm yam sib txawv, nws yuav muaj qee yam ntxiv xws li hlau hauv. Tab sis qhov zoo dua tooj liab yeeb nkab siv hauv kev lag luam tub rog thiab nws cov kev lag luam tshwj xeeb ntau dua.
3, kev ua haujlwm dav dav ntawm cov yeeb nkab tooj liab molding, feem ntau muab faib rau hauv lub xeev nyuaj, lub xeev ib nrab, lub xeev mos ntawm peb, cov ntaub ntawv sib txawv ntawm kev sib txawv kuj txawv, feem ntau tuaj yeem txiav txim siab los ntawm kev khoov cov yeeb nkab tooj liab, cov yeeb nkab zoo zoo yog yooj yim heev rau khoov tawm, tab sis yog tias nws nyuaj rau khoov los yog khoov tom qab cov kab nrib pleb tshwm, qhia tau hais tias qhov zoo ntawm cov yeeb nkab tooj liab fittings tsis zoo heev.
