Shock absorber damping materials from this point of view is divided in two main hydraulic and aerated, there is a variable damping shock absorbers. Hydraulic suspension system is widely used in automobile hydraulic shock absorber. The principle is that when the frame and axle reciprocating piston relative movement of children at the time of the shock absorber of the cylinder reciprocating, oil inside the damper housing will be repeated from the cavity flow into another through some narrow pores a lumen. At this time, the friction and internal friction of the liquid and the liquid molecules will form the inner wall of the vibration damping force. Inflatable inflatable shock absorber since the 1960s to develop a new type of shock absorber. The structure is characterized in the lower cylinder is provided with a floating piston 02s404 waterproof casing, a sealed chamber in the floating piston and cylinder formed at one end is filled with high-pressure nitrogen species. With large cross-section O-ring on the floating piston that is completely separated from the oil and gas. Fitted with the speed of its movement and change the size of the working piston passage sectional area of ??the compression valve and done valves. In materials metal hose major parts of the austenitic stainless steel, thus ensuring the hose excellent heat resistance and corrosion resistance, the hose very wide operating temperature range, is -196-600 degrees waterproof casing, hose used by pipelines through the media corrosive select the appropriate grades, you can ensure that the corrosion resistance of the hose. 1. The overall use of 1Cr18Ni9Ti metal hose made of stainless steel waterproof casing, with strong corrosion resistance. 2. Hose body is thin-walled stainless steel tube hydroforming waterproof casing dn300, with strong flexibility, high scalability, bending and vibration resistance, braid reinforced protection nets, so it has a higher pressure capability . 3. The connection ends of the hose connections can also be made in addition to other threads, flange standard, easy connection and use. Special metal hose 4. The product is suitable not only for supporting the rotary joint, and is widely used to connect a variety of flexible delivery of the fluid medium. Corrosion, high temperature, low temperature (-196 ℃ ~ + 420 ℃), light weight, small size, flexibility is good. Widely used in aviation, aerospace, petroleum, chemical, metallurgical, power, paper, wood, textile, construction, pharmaceutical, food, tobacco, transportation and other industries. Waterproof casing dn300 | Bo Yan Pipe (Online) | waterproof casing provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) Hebei Cangzhou, elbow leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Bo rock pipe industry leadership with the staff warmly welcome all inquiries negotiations to create rich rock pipe industry a better future.