Ntau lub khob ntim cov thawv ntim khoom yuav tau ua tiav kom zoo nkauj, xws li silk screen luam ntawv, ci paj, thiab lwm yam. Txawm li cas los xij, nyob rau hauv xyoo tas los no, cov thawv iav ntim tau xa tawm mus rau European lag luam yuav tsum xav kom tsis muaj hlau lead-dawb chrome paj ntawv thaum roasting. paj, uas yog teeb meem rau tib neeg lub cev thiab tib neeg lub cev. Ib puag ncig tsis muaj mob thiab tsis muaj kuab lom. Nyob rau hauv ntau lub iav fwj ci cov chaw tsim khoom, cov iav hub nrog silk screen thiab dej hloov decals yog ci ua ke nrog cov hmoov lead-dawb chrome paj ntawv, uas yuav cuam tshuam ncaj qha rau cov khoom tsis muaj chrome.
1. Txawm hais tias nws yog luam ntawv lossis ci, cov hmoov lead-chromium-muaj thiab cov hmoov lead-chromium-dawb yuav tsum tau qhib nyias thiab tsis tuaj yeem nyob hauv tib lub tsev khaws khoom.
2. Thaum tus neeg ua haujlwm ua haujlwm, lub tshuab luam ntawv thiab lub tshuab yuav tsum muaj kev ywj pheej thiab ua tiav rhiav.
3. Tom qab decals ntawm lub khob ntim, cov hmoov lead-chromium-muaj thiab cov hmoov lead-chromium-dawb yuav tsum tau muab cais thaum lawv qhuav lawm.
4. Thaum nkag mus rau hauv lub qhov cub ci, tsis txhob sib tov thiab ci, vim tias qhov kub thiab txias cua convection yuav paug cov khoom siv lead-chromium rau cov khoom uas tsis muaj txhuas chrome qauv ntawv.