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Old 10-21-2021, 04:00 PM
liudengyuand liudengyuand is offline
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Default Void detector
The world's detector enthusiasts, everyone good! Who knows a simple circuit that can detect underground empty? Do not be as a probe radar then complex, can detect the depth of the ground three smear, the hole size has a cubic meter, who can help me and thankful
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Old 10-21-2021, 05:52 PM
Pahom Pahom is offline
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Old 10-25-2021, 04:03 PM
liudengyuand liudengyuand is offline
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