Share: Title:Primitive Skills; Natural Rubber and How It's Made? Duration: 38:44 Plays: 215K views Published: 9 months ago Download MP3 Download MP4 Simillar Videos ▶️ 21:31 Primitive Skills; Making Steel From Iron Ore 215K views • 4 years ago ▶️ 45:31 Mining Process And Smelting Copper | Primitive Skills 215K views • 11 months ago ▶️ 44:39 Growing Rice On 40 Degree Slope, Grow Evenly, Rice Grains Are Very Large - Harvesting And Cooking 215K views • 6 days ago ▶️ 35:45 Primitive Skills: Building A Natural Woodland Pond And Waterfall 215K views • 4 weeks ago