Hebei Hankai rear hub oil seal
In addition to preventing fluid loss, oil seals also protect machinery from external contaminants such as dust, dirt, and moisture. These particles can cause significant damage if they enter the inner workings of equipment. The presence of a well-functioning oil seal eliminates this risk, fostering a clean operational environment.
20x35x7 oil seal

Emergency responders, such as police officers and paramedics, also wear blue reflective vests. These vests not only identify them as professionals but also ensure they are seen by others who may be driving or moving around emergency scenes. The use of color-coded vests can also help to differentiate roles; for example, a blue vest may signify a specific type of responder, aiding in the organization of emergency operations.
blue reflective vest
