Jiangsu Yongtai Datang Medical Material Co.,Ltd.the leading manufacturers of medical dressing Products,gauze sponges,lap sponges gauze bandages, gauze rolls, gauze balls, dental rolls, cotton rolls;Certificates,ISO9002, issued by TUV Germany in 1997. EN46002, passed the audit of in 1999. CE certificate, issued by TUV in 2000.