zhermack dental stainless steel impression material: 1.stainless steel 2.1 to 5,5 kinds of sizes 3.greater precision of th Zhermack dental stainless steel impression material Can be sterilized in a cold solution or in autoclave Available in two versions: solid and perforated Greater precision of the impression Solder, firm, use long time 1 to 5, 5 kinds of sizes hardeness ,not derorm