Yuav tawg-pov thawj qhov rooj Hoobkas cam khwb cia txhuas qhov rooj tawg-pov thawj siv tau ntev, Kuv ntseeg tias yuav muaj stains thiab plua plav thiab lwm yam, ces peb yuav tsum ua li cas ntxuav nws, Peb winga ntawm no qhia koj ob peb lub tswv yim;
1. Kev tu txhua hnub: ua ntej, siv cov tshuaj tsis huv (muag hauv khw muag khoom) rau hauv dej kom 5% tov, so cov av ntawm cov khoom siv txhuas nrog cov ntaub mos muag, tom qab ntawd ntxuav nrog dej, thiab so cov dej noo nrog cov mos mos. daim ntaub.
2. Kev saib xyuas cov khoom siv: feem ntau xyuas txhua yam ntawm cov khoom siv kho vajtse ntawm lub qhov rooj cam khwb cia txhuas tawg, thiab hloov lawv lub sijhawm yog tias pom muaj kev puas tsuaj; sealing wool thiab iav foob ntawm cam khwb cia txhuas qhov rooj tawg-pov thawj yog ob qhov tseem ceeb ntawm kev sib khi thiab kev txuag hluav taws xob, thiab lawv yuav tsum tau hloov lub sijhawm thaum muaj kev laus, luv luv lossis xoob.
3. Tiv thaiv corrosion: sim tiv thaiv alkaline thiab acidic tshuaj lom neeg los ntawm kev sib cuag ntawm qhov rooj tawg-pov thawj. Yog tias muaj cov stains, nco ntsoov tsis txhob txhuam nrog tus neeg sawv cev dissolving, muaj zog alkali lossis muaj zog acid, tab sis so nrog cov ntaub mos muag nrog dej huv lossis cov tshuaj ntxuav tes tsis huv.
