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90308990-HS编码 商品归类查询
 9030899090    
其他电量的测量或检验仪器及装置
Other instruments and devices for measuring or testing electricity (not fitted with recording devices)
 9030899010    
中子探测和测量仪表
Neutron detection and measurement instruments (used exclusively to measure the neutron flux of the reactor cores)

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