We are a professional rubber manufacture. For rubber sealing parts, we have 15 years' experiences. Material including NR,SBR,NBR,EPDM,CR,FPM,SILICONE or any material you Designated. Variety shape from round,square,retangle,hollow,D shape, E shape, C shape, H shape, to any customizing shape. Material available to stand high temperature to 350, low temperature to -70. Age resistance till 10 years. Ozone resistance, waterproof. These character allow our products to be applied to any of the industry and be outstanding during the usage.