Muaj kwv yees li 50 lub tuam txhab tsim cov ntawv luam uas tsis yog lo nrog qhov tsim tawm txhua xyoo ntawm 100 lab. Kev tsim khoom lag luam yog cov xa khoom tseem ceeb hauv Zhejiang, Guangdong, aluminium nonstick cookware Shanghai, Liaoning, Jiangsu thiab lwm qhov chaw. Cov khoom siv hauv lauj kaub feem ntau suav nrog cov lauj kaub txhuas, cov lauj kaub los ntawm cov hlau, txhuas tsis txuas cov tais diav hlau cov lauj kaub, hlau lauj kaub thiab tsis kub nyhiab. Cov lauj kaub no muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, ntawm qhov zoo ntawm cov ntaub qhwv tsis yog cov thawv tshwj xeeb tshaj plaws.
Hauv qab no yog kev sib piv ntawm kev ua tau zoo ntawm cov hom ntawm cov lauj kaub: cov yam ntxwv ntawm txhuas lub lauj kaub yog qhov zoo tshaj plaws tshav kub faib, cov nyhuv hloov ua kom sov yog 16 lub sijhawm ntawm cov hlau tsis khov, txhuas tsis txhuam cov lauj kaub tais diav thiab lub lauj kaub lub cev sib dua. Txawm li cas los xij, txhuas lub lauj kaub tsis yooj yim ntxuav, aluminium nonstick cookware thiab cov roj ua kom muaj roj yog loj thaum cov roj siv ntev ntev. Cov yam ntxwv ntawm lub lauj kaub stainless yog tias cov tshav kub faib ua haujlwm tsis zoo, aluminium nonstick cookware thiab nws yooj yim los tsim cov pob kub thiab hlawv cov zaub mov.
Lub lauj kaub hlau tsis muaj hnyav, txhuas ntxuav muag tsis yooj yim ntxuav, thiab haus luam yeeb thaum siv sijhawm ntev. Qhov tshav kub faib ntawm lub pob zeb txha hniav laus tsis zoo thiab hauv qab ntawm lauj kaub yog yooj yim los lo. Cov lauj kaub no nyuaj rau ntxuav, thiab saum npoo yog yooj yim puas tsuaj, ua rau cov hlau txheej xeb.
Kev faib tawm cov cua sov ntawm cov tais lauj kaub yog qhov tsis zoo, txhuas tsis siv tshuaj ntxuav tais diav nws yooj yim los tsim cov pob kub thiab txhuam cov zaub mov. Lub lauj kaub yog hnyav, tsis yooj yim los ntxuav, yooj yim rau xeb, aluminium tsis siv cov tais diav thiab cov pa roj yog loj thaum cov roj siv ntev.
