***组份标气
C2H60.54%C2H40.49%C3H80.56%C3H60.49%H23.12%N23.12%CO12.5%O20.95%CO25.09%正丁烷0.01~0.04%异丁烷0.01~0.04%正丁烯0.01~0.04%异烯烷0.01~0.04%平衡气***气)
主营：气相色谱仪.仪器配件耗材
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