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Ua raws li lub teeb rau pem hauv ntej 24
Thaum lub Cuaj Hlis 8, 24 Sichuan Jingding Technology Co., Ltd. yog caw tuaj rau ...Nyeem ntxiv -
Kawm txog kev bismuth
Bismuth yog silvery dawb rau cov hlau liab uas yog nkig thiab zom zaws. Nws cov tshuaj lom neeg muaj qhov ruaj khov. Bismuth muaj nyob rau hauv cov xwm nyob rau hauv daim ntawv ntawm cov hlau dawb thiab cov zaub mov. 1. [Xwm] Briewh yog cov hlau muag muag, thaum tsis txhob lam tau bismuth yog nkig. Nws yog ruaj khov nyob hauv chav tsev kub ....Nyeem ntxiv
