Tam sim no, lawv paub yuav ua li cas yuav luag txhua yam. Tab sis tsis yog ib qho cuav yuav raug nqi rau koj npaum li kev yuav ib qho ntawm cov hniav nyiaj hniav kub uas tsis zoo tib yam qib li hais ntawm cov hniav nyiaj hniav kub. Cseudo jewellers tsim cov khoom tshiab. Thiab txawm tias cov paub dhau los masters ntawm lawv cov paj ntaub yuav tsis muaj peev xwm paub tam sim ntawd tus cuav. Yuav ua li cas los txiav txim siab qhov tseeb ntawm kub?
Cov Lus Qhia
Kauj ruam 1
Txhawm rau txiav txim xyuas qhov tseeb ntawm kub, koj yuav tsum tau tshawb xyuas tag nrho saum npoo ntawm cov pob zeb yas. Nws yuav tsum yog tsim los ntawm tus tswv zoo, ntxig tus. Cov txuas ntawm cov pob zeb yuav tsum tsis txhob pom tib neeg lub qhov muag. Qhov zoo dua tag nrho cov ntsuas no yog, chav ua khoom ntau dua. Yog tias muaj cov kab nrib pleb thiab lub qhov ntawm cov khoom, qhov no yuav tsum ceeb toom koj tam sim ntawd.
Kauj ruam 2
Txhawm rau tshuaj xyuas cov kub tiag tiag nyob rau hauv koj hauv ntej lossis tsis tau, koj siv tau cov twj qub. Tso lub nplhaib rau ntawm qhov chaw tiaj, nyiam dua ntawm ib lub rooj. Kub yog tseeb rau emit ib tug yam ntxwv siv lead ua suab nrov. Lwm cov alloys tsis muaj cov khoom siv suab paj nruag no. Xwb, koj tuaj yeem sim pov lub nplhaib sib dhos-txuas mus rau hauv pem teb tiled. Cov kub tiag tiag yuav tsum dhia hla cov vuas, tab sis lwm cov hlau yuav tsis.
Kauj ruam 3
Qhov tseeb ntawm ib qho ntawm cov hniav nyiaj hniav kub tuaj yeem paub tseeb los ntawm kev thov ib tee ntawm iodine rau nws saum npoo. Koj yuav tsum tau tos peb feeb, tom qab ntawd so cov chaw no nrog daim ntaub mos muag. Yog tias iodine imprint tsis pom nyob ntawm cov khoom, ces kub yog tiag tiag. Koj tuaj yeem tshawb xyuas qhov kev kho kom zoo nkauj zoo ib yam, tab sis tsuas yog siv cov vinegar.
Kauj ruam 4
Lapis mem hluav yog muag hauv cov khw muag tshuaj. Txais nws. Moisten ib tug xaum ntawv nrog cov qaub ncaug thiab txhuam cov khoom maj mam nrog nws. Yog tias kub tam sim nrog, nws yuav tig mus dub.
Kauj ruam 5
Ib txoj hauv kev yooj yim tshaj plaws los txheeb xyuas cov nyiaj kub yog dhau ntawm nws lub peev xwm muaj peev xwm loj. Kub tiag yog tsis nyiam los ntawm cov hlau nplaum. Qhov no txhais tau tias yog tias koj cov khoom tau yooj yim magnetized, ces nws muaj tus qauv qis los yog muaj qhov yooj yim gilding.
Kauj Ruam 6
Tsis tas li, cov neeg tseem ceeb tuaj yeem tsim los ntawm kev txhuam qhov adornment ntawm cov vuas khov uas tsis kub. Them sai sai rau qhov seem tshuav. Qhov cuav yuav tsum tawm cov ntawv tsaus.
