hydraulic oil seal material
1. Dimensions The numbers can indicate the dimensions of the seal. For instance, the first number may denote the inner diameter, the second, the outer diameter, and the third could refer to the width or height of the seal. These dimensions are critical for ensuring that the seal fits perfectly within the intended assembly, thereby maximizing effectiveness.
20 35 7 oil seal

Water treatment typically involves several stages, including coagulation, sedimentation, filtration, and disinfection. The coagulation process involves adding chemicals to the water that bind with impurities, forming larger particles called flocs. During sedimentation, these flocs settle at the bottom of the treatment tank, allowing clearer water to be collected. The next step, filtration, involves passing the water through layers of material such as sand, gravel, or charcoal to remove remaining particles and microorganisms. Finally, disinfection is crucial in killing any pathogens that might be present in the water. Common disinfection methods include chlorination, ultraviolet light treatment, and ozonation.
water treatment
