Walzmühle site back Walzmühle site without Markus Graf? Unimaginable. Published: 24. September 2020 The HIAG sites live from their tenants. One of them is Markus Graf. A life without Walzmühle site? Unimaginable for the trained blacksmith. He was accompanied in his work and he told us why he feels so comfortable in the rolling mill in Frauenfeld. Read more Windisch New climbing hall at the Kunzareal Biberist Drive-in cinema event in the Papieri site Completely new website hiag.com!