Shanghai excellent sealing Technology Co., Ltd - Shanghai best wiper manufactuer has imported advanced hydraulic equipment more than 50 units, with two on an international level of automated production lines, production capacity exceeded 800 million, the company also equipped with leading domestic CNC mold processing equipment dust ring, according to information provided by the customer to complete the development of the product from the mold to the entire process of production, Nissan O-ring 4 million, out of the tube strip 1000Kg, existing mold 4000 sets, small appliances, machinery, toys, cars, sanitary and other industries ideal accessory manufacturers. Features dust ring: 1, temperature range: -60 ℃ to 225 ℃, high temperature up to 300 ℃ special silica dust ring Which is good, and low temperature to -100 ℃. 2, material hardness range: 25 degrees to 90 degrees. 3, Color: black, brown, green, white, red, brown, yellow, blue, red, orange, transparent, etc., may also be customer specified color. Dust ring Which is better? On the choice of Shanghai Science and Technology Co., Ltd. excellent seal. Website: http: //www.shyqmf.com Address: 259 Guizhou Road, Huangpu District, Shanghai