Ethylene - propylene - diene monomer (EPDM) and nitrile - butadiene rubber (NBR) are well - known rubber materials. They both possess good abrasion resistance, weather resistance, and [it seems "Kanglehui" is a wrong term here, you may want to double - check and correct it, for example, if it's "chemical resistance", the following text will be adjusted accordingly]. Given this, a question often arises: which one has better anti - aging performance? The answer is that their anti - aging performance varies depending on the working environment. We cannot make a one - size - fits - all judgment. The anti - aging performance is conditional. Now, let's analyze it based on their typical applications. 

Ethylene - propylene - diene monomer (EPDM) and nitrile - butadiene rubber (NBR) are both well - known rubber materials. They exhibit excellent abrasion resistance, weather resistance, and [it seems there's an error with "Kanglehui"; if you meant something like "chemical resistance", it should be corrected here]. As a result, a common question is: Which of these two materials has better anti - aging performance?

The answer from the author is that their anti - aging properties differ according to the working environments. One cannot make a sweeping generalization; the anti - aging performance is contingent upon specific conditions. Now, let's analyze this based on their practical applications.