History clay mining, steel, refractory at Westerwald
links, see in German Martin Buhr Nov. 2021
* Clay, Ceramic, Aplication at Westerwald
* visit first Steelplant Westerwald "Sayner Hütte"
* Institut for Ceramic students
* Visit of Ceramicum Techniks 2019
* Martin Buhr picture from scool and job
* Martin Buhr 48 years refractory experience
* Steelproduktion today movies mp4 / mpg:
* develupment gunning and casting machine
* Semester 67/70 meeting 2019 at Westerwald
* Semester newspaper 1967-1970
* Semesterpictures 1970 - 2017
* Semester meeting 2019