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| 有机气体浓度红外变送器 | GD4110-HC | 
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| 便携式红外光谱气体分析仪 | pGas4160 | 多种气体分析 | |||
| 便携式红外光谱有机气体分析仪 | pGas4160TF3041 | 多种有机气体分析 | 
北斗星科技有限公司 业务部
http://www.big-dipper.com.cn/Products/Gas/