Annular sleeve shaft kiln is a vertical cylindrical kiln with an annular sleeve of refractory material that forms a barrier between hot gases and product in kiln. The annular sleeve helps to create a more uniform temperature across the product being fired
Fly knit together upper is a single layer upper that is almost completely seamless by using 3D integrated molding technology, using yarns of various colors as raw materials and using a new weaving craftsmanship.