Summary: Concentrator Spiral Chute is our company of concentrating experienced scientific product, which is the best concentrating equipment, especially for concentrating of the sand 0re of the seashare, riverside, sand, rill is better. The advantage is reasonable structure, simple fixed, less space, easily operated, concentrating even, separated clearly, high efficient. The product is made of the chlorine plastic, the advantage is light, moisture proof, antirust, corrosion proof, properly suitable for the changing of th feeding size and chrome, granularity, grade, no noisy.