Hebei Hankai cfw oil seal
The 40x55x8 mm oil seal finds applications across various industries. In automotive systems, it is commonly used in engines and transmissions to contain lubricants and hydraulic fluids. This prevents oil leaks that could lead to inefficient operation or costly damages. Additionally, these seals are pivotal in construction machinery, agricultural equipment, and even household appliances like washing machines. In each of these applications, the oil seal helps maintain the integrity of the lubrication system, thereby enhancing efficiency and extending the life of the machine.
40x55x8 oil seal

Anodizing
Anodizing cannot peel off. The coating is part of the metal. Anodizing gives aluminum a deeper, richer metallic appearance than is possible with organic coatings. This is because an anodized coating is translucent, and one can see the base metal underneath the coating. Anodizing provides a thin aluminum oxide layer, which will deteriorate over time. Depending on the thickness and quality of the anodization, the surface should last 10-20 years.
The window profile, or window frame, can be made mainly from three different materials: plastic, i.e. PVC, wood and aluminium. Plastic profiles are the most common and the most economical. Laminated timber frames are valued for their naturalness and rigidity, which is particularly important for larger patio windows. However, they are more expensive, heavier and require regular maintenance. Aluminium profiles, on the other hand, although they have the highest cost, are the most rigid, durable and maintenance-free. This is why their share of the market is steadily increasing, although due primarily to their high price, they still do not exceed a few percent.