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?? ??? ??? ????(Zhejiang Haishen New Materials Co., Ltd.)? ???? ??, ?? ?????? ?????? ??? ?? ? ?????. ??? ???? ????? ??? ? ????? ???? ?? ??, ???, ??? ? ??? ??? ?????. ?????? ?????(HEC)? ???? ??? ???? ??? ??? ???? ??????. ??? ??? ???? ??? pH? ???? ??? ??? ?????. ??? ?, ??, ???? ?? ??? ??????. ??? ?? ??? ??? ?? ??? ????, ? ?????? ?????? ??? ??? ?????? ??? ??? ???? ????. ??? ???? ?? ???? ??? ????, ??? ??? ???? ?????. ?? ?? HEC? ??? ??? ???? ? ??? ?????!
