Lwm yam tshuaj lom neeg

  • Other chemical products

    Lwm yam khoom siv tshuaj lom neeg

    Ntxiv nrog rau cov yas tseem ceeb, txheej txheej hloov kho tshuaj ntxiv, lub tuam txhab tau nthuav dav nthuav dav mus rau thaj chaw dav, txhawm rau txhim kho cov khoom lag luam rau cov neeg siv ntau dua.

    Lub tuam txhab tuaj yeem muab cov khoom lag luam molecular sieve, 6FXY

    (2,2-Bis (3,4-dimethylphenyl) hexafluoropropane) thiab 6FDA (4,4 ′-(Hexafluoroisopropylidene) diphthalic anhydride).

    nugnthuav dav