1.Waterproof, dustproof, 2.harmless avirulent insipidity 3.good quality 4.reasonable price 1.Waterproof, dustproof, and2.leakage, shockproof, lie between temperature, high and low temperature resistance,3.ageing resistance, oil resistance, acid and alkali endurable, ozone, harmless avirulent insipidity4.Products have a strong competitive advantage, efficient service, good quality, reasonable ...