Fine workmanship: 304 stainless steel is durable, rust-proof and anti-corrosion. Smooth rotation: thick and careless, good bearing capacity, sturdiness and durability, greater bearing capacity. Thickened material: The surface is processed by vibrating light, and the shaft is thickened to strengthen the load-bearing. Exquisite craftsmanship: The vibrating lamp has fine texture, high level, and smooth opening and closing. Suitable for: cold storage doors, special vehicles, etc., Manufacturer: Shun Yingtong