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24021 cathode ray tube (showing straight-in tube)
24035 Ampere Force Demonstrator
24036 Ampere Force Tester
24042 single-turn coil motor principle demonstrator
24044 three-phase motor principle demonstrator
24055 gate circuit and sensor application experiment box
A battery
Adjustable wrench
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Primary mathematics
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Junior middle school mathematics
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Ningbo Zhongqi Education Equipment Co., Ltd.
Tel：0574-6206 1266
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浙江七米
