Heat-Treatment of Steel: A Comprehensive Treatise on the Hardening, Tempering, Annealing and Casehardening of Various Kinds of Steel Erik Oberg E-Book (epub)

Machinery's Handbook Pocket Companion Erik Oberg, Franklin D. Jones, Holbrook L. Horton E-Book (epub)

Machinery's Handbook Pocket Companion Erik Oberg, Franklin D. Jones, Holbrook L. Horton E-Book (epub)