Modern connectors generally adopt an IP protection level system, but there are significant differences in the actual protection characteristics of different levels.
In the past, cars made by new forces were often roast about because of "poor chassis". The Ideal ONE and NIO's first generation models, despite their high-quality materials, lack experience in tuning and have poor dynamic performance.
In the past, the "chassis tuning" of traditional luxury cars was very powerful, but now, new technologies such as BYD's "turning around in place", the ideal "magic carpet suspension", and Tesla's "2.1 second breaking hundred body stability" are changing the rules of the game.
Fluoroelastomer (FKM or FPM for short) is simply the "all powerful king" of the materials industry, with high temperature resistance, oil resistance, chemical resistance, ozone resistance, and aging resistance.