O-ring scope of 
 O-ring installed in a variety of machinery and equipment, in the specified temperature, pressure, and the different liquids and gases from stationary or moving seals. O-ring is mainly used for static seals and reciprocating motion seals. For the seal of the rotary motion is limited to low-speed rotary sealing device. O-ring is usually installed in the seal groove on the outer or inner circle cross-section rectangle. O-ring in the oil, acids, alkalis, grinding, chemical erosion and other environmental still play a good seal, damping effect. Therefore, the O-ring is the most widely used in hydraulic and pneumatic drive seals. Contact: Tangjing Li Tel :029-33326602 13468510736 QQ: 347721549 E-mail: xibeixiangjiaoyjs@163.com. 
 X-ring, also known as the star-shaped ring, a thought can reduce friction installed in a dedicated compression rate of the smaller trench, but can also be used in the O-ring groove in the same specifications. Has a low friction X-ring, can better overcome to reverse the availability of better lubrication; either as a movement in the lower speed sealing elements, and also suitable for static sealing use. Contact: Tangjing Li Tel :029-33326602 13468510736 QQ: 347721549 E-mail: xibeixiangjiaoyjs@163.com. 
 Ring to rely on their open lips affixed to the seal pair coupling surface. No internal pressure, only a small contact pressure due to deformation of the lip tip. France in sealed contact with the sealing medium, both with the media pressure equal to the pressure, so the bottom of the lip ring will be subject to axial compression, lip by circumferential compression, wider contact with the sealing surface, contact stress increase. When the internal pressure increases, the contact pressure distribution of the form and size of further changes in the lip and the sealing surface with a closer, so a better seal, which is Y-shaped circle of self-styled role. Contact: Tangjing Li Tel :029-33326602 13468510736 QQ: 347721549 E-mail: xibeixiangjiaoyjs@163.com.