The acrylonitrile-styrol reisn is firmly combined on active carbon, thus being safe and nontoxic to the environment.
丙
-
乙树脂和铜离子牢固结合在活性炭
，对环境安全无毒。
乙The acrylonitrile-styrol reisn is firmly combined on active carbon, thus being safe and nontoxic to the environment.
丙-乙树脂和铜离子牢固结合在活性炭，对环境安全无毒。
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