Relationship between modulus of elasticity, modulus of rupture, and selected physical characteristics of eastern spruce structural lumber : Part I - Analysis of stress grading systems for eastern spruce structural lumber

James E. Shottafer, Gregory Baker
Bok · Engelsk · 1969

Utgitt	Orono, Maine : Maine Agricultural experiment station, University of Maine , 1969
Omfang	24 s. : ill.
Emner	gran styrkesortering konstruksjonsvirke