long-time use

The other day, we have received a maintenance request from a customer
who purchased our product 12 years ago.
The following is the picture of the body which has passed 12 years from
the date of purchase.
There are some signs of use, but even after 12 years past, it seems to
be used every day by contributing to the customer’s work.
The durable ice mold can withstand long-time use.