Dear Mr/MadamHow are you?I would like to introduce our manufacturer (Natural Bitumen) gilsonite powder. That has been in business for more than 12 years.We have been an established and popular company in Iran with an excellent track record for the best customer satisfaction.We export more than 3000 tons of year to different place in the world. Natural Bitume is a inform you to take your inquiry by the best conditions and the best quality. So glad to make more greeting and cooperation. Awaiting for your kindly replyB.rgsCommercial managerPeyman AshegahnSkype: +98(0)9124149599Mobile: +98(0)9124149599Tel/Fax : +98 44462997-9