60L Waterproof Lightweight Hiking Backpack with Rain Cover for Climbing CampingMade of high-quality and safe material, it is durable for long-time use, nylon fabric material, Made of High quality rip-stop polyester material, water resistant, tear resistan
7075 aluminum plate is a cold-treated forging alloy with high strength and hardness, far superior to mild steel. 7075 aluminum plate is one of the most powerful commercial alloys, with common corrosion resistance, good mechanical properties and anode reac