Leading Suppliers Globally for Engineers' Chalk

Here is a list of well-known global suppliers of Engineers' Chalk:

1. Staedtler
2. Dixon
3. Faber-Castell
4. Koh-I-Noor
5. Alvin
6. General's
7. Westcott

These companies are known for their quality engineers' chalk products and have a strong presence in the market.