TEHRAN, July 20 - The 10th international Stone, Mine and Related Machinery Exhibition kicked off on Friday in Tehran.
TEHRAN, Young Journalists Club (YJC) - Over 215 companies, including 160 Iranian ones and 55 foreign companies are attending the event.
Germany, Italy, China, Turkey and Spain are presenting their achievements in the expo.
Several trade and investment delegations from various countries are also among attendees.
The event also includes several technical sessions on challenges to stone, architecture and city image as well as boosting branding technology and standardization.