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30 MINS diy tractor mini traffic lights science project | How to make Traffic Lights for train Watching more: The video features a 30-minute DIY project where a mini tractor is used to create traffic lights for trains. It explains the step-by-step process of making functional traffic signals for a model railway system. If you find the video interesting, please click like (👍) to share and subscribe to our support channel! We are very grateful for your generosity and will use this fund to develop the channel better and better!!! #diytractor #sunfarming #riceharvest #homemade tractor #sand_sieving machine #construction machine #haiphongminitractor #sunnyagriculture Thanks for watching..................
