Hi Sir/Madam,It is nice to write to you. This is abhi from India. I am interested in this style of butadiene rubber, 3604 NBR Rubber for yoga mat and in doing business with you.May I know more information about product such as:Width,Width ,Model Number,Do you have any quality assurance certificates?Thank you very much for taking the time to answer my questions.With Regardsabhipatel industry Show More