
stonewash fitted sheet

Flannel:Flannel is a material most people are likely familiar with from flannel shirts, but it is also a material used for bedding. Traditionally only made with wool, flannel is now made with a variety of materials. Cotton and polyester are the most common.
The spring shown in the figure is known as a garter spring, and it maintains tension on the sealing lip of the seal. Garter springs are closed coil springs used in the form of a ring, the ends of which are connected together as shown in Figure 2.10.
OIL SEAL
All are fitted with a spring to preload the sealing lip. All these types are for non-pressurised or low-pressure applications up to 0.5 bar for diameters of a limited size. For diameter of 500 mm or more, the maximum pressure is 0.1 bar. For higher pressures, special types or PTFE lip seals can be used.