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    2019-02-25 04:27:45

    ok

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    2019-08-23 03:25:42

    Work perfectly, up to 3v generator with led connected. Noisy, but hight speed.

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    2019-04-05 05:01:13

    bien reçu pas de casse il fonctionne bien

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    2019-10-24 16:19:20

    Super Engine, Thank You..

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    2019-10-20 02:50:44

    EN: Very good concept but an arrival I had to tighten the screws and a stopper for the piston rods was needed so that the piston could be guided better because otherwise the piston would eat away the glass of the cylinder walls... Oiling the moving parts should be done too but no oil between the piston and the cylinder would not be good.. But after that it works very well 😊 And if someone asks: can a candlelight power the engine? - I tried it and it seems like it does not generate enough heat👋 DE:

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    2019-10-14 21:22:19

    Bought for a STEM project. Looks well made and was extremely well packed. Included spare parts which was great.

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    2019-09-20 13:20:10

    ürün geldi.görsel de görünenden daha iyi ve iyi çalışıyor

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    2019-08-24 03:54:12

    rất tốt. rất tuyệt vời

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