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1.????? ???????? ???? ???? ????? ????? ?? ??? ????? ??? Na2WO4 ? 2H2O ????? HCl, ????? polytungstate ????. ???? ??? ?????? ?????? ???? ??? ?? ????? ???????????. ?????? ????????? ?????? ??????? ????? ?? ?? ????? ?????. ????? ????????, ??? ????? ?????? ?? ??? ????? ??? ???? ???? ????? ???.
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?? ?? ?? ????? ????? ????????, ?? ???? ????? ????? ????"?: sales@chinatungsten.com?? ??????:+86 592 5129696.
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