Cutting Disc - Png Download

Dear team
I know that grinding (Abrasive) discs are coming with expiry date. But i noticed that there is no expiry date displayed on the cutting discs. Is it not necessary? If then why? Pls share your knowledge.

All the products have got expiry period except liquors. Check the expiry date or contact manufacturer quoting batch No. if any.
Pon

Dear all
Thanks for your reply. Pls go through the given below link and looking forward for your comments.
Angle Grinder Wheels | Bosch

Dear Vijay,
You raised a good/valid question, Already I wrote to some grinding wheel manufactures as soon as get any responce from them will update you all.

Dear Vijay,
Really this topic getting intresting for me. I had a chat with lot of seniors regarding the above mentioned subject, all of them adviced me to contact manufacturer instead of giving answer its surprise me.
I wrote the manufactures but didn't get any responce from them i think due to chrismas holidays they are not online. Anyhow i will wait upto new year if i dont have any responce from them will call them directly and raise our question. (Email is the better way to communicate because like this query they will not give the appropriate answer by phone actually what we expect, but in mail they should give the appropriate answer.)
I hope some of our seniors will help us to get the solution on this matter.
Thanks in advance.

Team,
I had a very good discussion with BOSCH technical team regarding the above mentioned subject.
I had send some picture to BOSCH which i download from net, which doesn't show the EXP date (See the attached).
See the below reply that i received from manufacturer. My understanding was every cutting/Grinding disc should have validity.
Reply from BOSCH :
Our Bosch product does in fact have the expiration date embossed in the center of the wheel. I understand that it's very difficult to see in the picture. When I enlarged the photo you sent, the date is pressed into the center white ring at about a 2:00 position.