முக்கிய விவரங்கள்
பொருளின் முறை:快递, 空运, 陆运, 海运
பொருள் விளக்கம்
Flat washers (also known as plain washers, washers, or washers) are basic components in the fastener system, mainly used in conjunction with bolts and nuts. - Distribute the pressure when the bolt is tightened to prevent the surface of the connected parts from being crushed;
Fill the gap between the bolt and the connected parts to improve the stability of fastening;
Isolate different metal components to avoid electrochemical corrosion.