Why One Gram of This Stuff Costs More Than Silver 🪶💰 ​Inside the World’s Largest Duck Down Factory: Full Production Process 🏭❄️ ​How 10 Million Feathers Are Sorted and Cleaned Every Single Day! 😱🧥 ​ ​Welcome to Ultra Flux USA ⚙️ See how fascinating products are made, from massive factories to high-tech production lines 🌍 ​Ever wondered how a simple feather keeps you warm in -30 degree weather? ❄️🧤 It’s not just any feather—it’s a high-tech engineering marvel! Today, we’re stepping inside