Rj01132085 Better -

If they're looking for a replacement part, I should ask for more details about what the piece is used for, which product model it belongs to, and what's wrong with the current version. If they're asking for improvements, knowing the application or use case would help. Also, confirming whether "rj01132085" is indeed a part number or a model number. The year 2085 seems unlikely, so maybe it's a code where the digits don't represent a date but a batch or sequence number.