Toothbrush Manufacturing Process & Business Idea – Profitable Startup Guide" Discover the complete toothbrush manufacturing process and a profitable business idea in this detailed video. Learn how toothbrushes are made, the required raw materials, machinery, and the investment needed to start this business. ✅ Manufacturing Steps – Injection molding, bristling, trimming, polishing, and packaging ✅ Required Machinery – Injection molding machine, bristling machine, and automatic packing unit ✅ Busi