I. Introduction Shijiazhuang towards Germany Rubber Co., Ltd. Ms. Zhang 13513378457,0311-89255157. The application of modern management, has formed a set of production, processing and trade in one of the core team. From product design, development, to mold development, raw materials, finished products, quality testing and so improve the production process, with advanced and complete equipment, strong technical force, a sound management system and continuously improve the production process and perfect. Core products are: ethylene propylene diene monomer (EPDM) rubber seal, EPDM foam (sponge) rubber, rubber seal, PVC sealing strip, high temperature resistant silicone and various EPDM, rubber, PVC, silicone derivative products. The company has always been to science and technology, based on management, quality of survival, innovation and development, the quality of rubber seals and other products the first place, the introduction of the advanced production equipment and technology and outstanding professionals, dedicated to rubber seal production technology to enhance and improve product quality. With our excellent quality and perfect service commitment to customer! Second, product introduction EPDM is ethylene, propylene and a small amount of a third monomer non-conjugated diene copolymer, international name: Ethyiene Propyene Diene Methyiene called EPDM. Has excellent resistance to ultraviolet light, a weather resistance, heat aging resistance, low temperature resistance, ozone resistance, chemical resistance, water resistance, good electrical insulating properties and elasticity, and other mechanical properties. These advantages are PVC and other materials are irreplaceable. Microwave curing extrusion process a smooth surface appearance, has good flexibility and resistance to compression set resistance, aging, ozone resistance, resistance to chemical corrosion, wide temperature range (-10 ℃ ~ + 200 ℃), etc. performance, and cold not stiff, good sealing performance, wide temperature range and dense foam rubber composite made of different shapes, different materials, or cold, heat, foam, solid body, and having special performance requirements for products, can meet the needs of the design and use, durable. facilitate mounting. Third, the product features 1, EPDM has excellent weather resistance, weather resistance refers to long-term anti-cold, hot, dry, wet ability, rain and snow water erosion have excellent resistance to corrosion resistance, can be extended strip life; 2, heat aging resistance means a strong hot air aging resistance. When at 100-120 ℃ long-term use, can maintain effective physical properties over a long period at 140-150 ℃, 230-260 ℃ in a short time can be resistant to high temperature, sudden and unexpected urban architecture, you can play to delay action; with the use of special formula, EPDM rubber in -50 ℃ to 150 ℃ feel close, creating a highly efficient job performance 3 for the production of on-site installation, since the EPDM has excellent resistance ozone, also known as "crack-free rubber", especially applied in different atmospheric index, completely exposed to the air in all kinds of city buildings, but will also show the superiority of their products; 4, anti-ultraviolet radiation, high-rise building tenants action to protect the environment; can withstand 60 ~ 150KV voltage, corona resistance, resistance to cracking, arc resistance, and very good. Low temperature flexibility, stretching capacity of 100MPa when the temperature is -58.8 ℃. 5, because of its excellent mechanical properties, it is often used in the manufacture of aircraft, cars, trains, buses, ships, low voltage switch cabinet, glass curtain wall, aluminum thermal break window seal parts and diving products, high-pressure steam hose , tunnels, viaducts and other joints waterproof parts and other industrial, agricultural sealing parts. Fourth, the technical parameters of dense rubber part of the sponge rubber section Temperature -40 ~ 140 ℃ -35 ~ 150 ℃ Hardness 50 ~ 80 ℃ A 10 ~ 30 ℃ tensile strength (>) ≥10 elongation at break (>) 200-600 200% ~ 400% Compression set 24 hours 70 (≯) 35% 40% Density 0.3 ~ 0.8 1.2 ~ 1.35