1.AA, A, AB,B grade casing, 3m/+,4m/+,5m/+,6m/+,8m/+ etc. 2.Net3, Net2 3.Fresh, good color 4.Standard measurement and caliber 1. natural china original hog casings2.no whisker3.good color, fresh, transparent4.good texture5.standard caliberation, and measurement6.all grades and calibers7.processing all the specifications you need8.Net1, net2, and net3