Both veterinary class or human medical class in the purchase of these two kinds of sutures regular manufacturers will let you provide you with your business license, corporate identity card, sales permits and other formal qualifications of the copy. Medical sutures belong to medical devices, there is a strict control system. So in the sale of complete qualifications to be able to carry out normal sales. At present, foreign brands Johnson and Johnson, Tyco is relatively strong. Domestic brands Hediko, Runte is not bad.