結果 : how to make a makeshift air pump
3:33

How to make Air Pump using Bottle - DIY Life Hacks

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How To Make Air Pump At Home - Homemade Air Compressor

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Amazing !!? No engine needed and free electricity

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How To Make Air Pump At Home - Homemade Air Compressor

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How To Make Air Pump At Home - Homemade Pressure Air Compressor

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