Compliant with British and U.S. Pharmacopoeia Type 13, Type 17, and Type 20 gauze, the color is white, green or blue with or without X-ray one-layer, two-layer or four-layer gauze roll 36''/48''* 1000/2000m36''/48''x5.5/11/55/100/110yards Other diameters, widths, lengths and packaging can be customized according to customer requirements Medical absorbent cotton 1 Properties Medical absorbent cotton should be soft and elastic white fiber. No stains, stains and foreign matter, odorless and tasteless. 2 Whiteness The whiteness of medical absorbent cotton should not be less than 80 degrees.