Nitrile butadiene rubber (NBR) is a copolymer made of acrylonitrile and butadiene monomer polymerization, mainly produced by low temperature emulsion polymerization, It has excellent oil resistance, high wear resistance, good heat resistance, strong adhesion. Its disadvantages are poor low temperatu

‌As a common sealing material, O-rings play a key role in all kinds of machinery and equipment. Although the structure of the O-ring is relatively simple, different material choices can significantly affect its performance and application range. This article will analyze the advantages and disadvant

American standard O-ring ‌is a rubber sealing ring,also known as AS568 standard O-ring. The design of this sealing ring is very simple and practical, and it is the most widely used seal in hydraulic and pneumatic systems. The specifications and models of the American Standard O-ring follow the stand