1.Pass ISO9001:2000 2.Free samples 3.Competitive price 4.High quality Specifications:1. I.D.(mm):196-9002. ... multilayer spiral fabric reinforcements, steel wire spiral layer, and an oil and weather resistant sythetic rubber cover. Applicatitons:1. Used for ... , working pressure2. Widely used for sucking or discharging of water, oil, air, and powders in industry, agriculture, factory, mining and ...