ironing board cover extra thick_dining table cover waterproof 8 seater

The inclusion of 7% steel, often in the form of a metallic insert or spring, further fortifies the oil seal's performance20 30 7 oil seal. Steel provides the necessary rigidity to withstand mechanical stress and maintain the seal's position within the machinery. It aids in preventing the seal from extrusion, particularly in scenarios where there is significant pressure acting against it.