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Expandable graphite yog tsim los ntawm ob txheej txheem
Cov graphite nthuav tawm tau tsim los ntawm ob txheej txheem: tshuaj lom neeg thiab hluav taws xob. Ob qhov txheej txheem sib txawv ntxiv rau txheej txheem oxidation, deacidification, ntxuav dej, lub cev qhuav dej, ziab thiab lwm yam txheej txheem yog tib yam. Qhov zoo ntawm cov khoom ntawm feem coob ntawm cov ...Nyeem ntxiv
