the guardian of this unique country, i love turk qashqani and gol bakhtiari, two brave people , i am iranian, i am a compatriot with you, and i am a good servant of god. i am an iranian, full of honor from god. with his art, he gave a gift to me . hello reporter, we will start and we will honor your attendance, dear viewers, the eleventh exhibition. iran sakht laboratory materials with the aim of developing the market of scientific companies and empowering laboratory and research collections will start its work from today. we are the host of mr. javad mashaikh in the studio. ok , you are very welcome. good morning. good morning to you too. good service to you, your colleagues and all dear and respected viewers. how many companies are present in the 11th edition of the exhibition? yes, we will have the honor of hosting more than 330 companies providing advanced laboratory materials and equipment in the 11th edition of the iran exhibition, which will present their achievements for 4 days from today until the 15th of december. international exhibition site. tehran will offer milad persi