... 100000pcs; C.CE certificate; D.Timely delivery. carbon steel surgical blade,1.material:carbon steel; all blades are made of high ... #,12#,15#,18#,19#,20#,21#,22#,23#,24#,25#,36#.5.all blades are individually packed in a composition aluminium ... ;6.shelf life:5 years.pictures: 20# carbon steel surgical blade