应用于室内，车间，交通工具（车、船、飞机等）内的气体分析。内径mm长度m膜厚um价 格 内径mm长度m膜厚um价 格0.20300.31200 0.32300.312000.20300.612000.32300.612000.20500.318000.32301.012600.20500.618000.32500.318000.25150.37000.32500.618000.25150.67000.32501.019000.25300.312000.32503.028000.25300.612000.53150.59000.25301.012600.53151.09600.25500.318000.53300.516500.25500.618000.53301.017500.25501.019000.53500.527500.32150.37000.53501.028500.32150.67000.53503.04000