Media and Documents Tips, suggestions and technical data sheets Data sheets Ostemer 322 Crystal Clear – Data sheet Sep 2017 Ostemer 324 Flex – Data sheet Oct 2017 Ostemer 220 Litho – Data sheet Oct 2017 Guides Making vias holes in Ostemer 322 Ostemers features overview and selection guide – Oct 2017 Ostemer 322 Crystal Clear – Overview