About KORHONEN A
About Helsinki Univ. Technology
About SIRVIO E
About Helsinki Univ. Technology
About SUNDQUIST H
About Technical Research Centre of Finland
About 12th Biennial Congress. International Deep Drawing Research Group, 1982, Vol.1
About dies for plastic working
About plasma nitriding
About Surface hardening
About Ceramic coating to metallic materials
About 成形用工具
About 特性改善