Yazar
david r schumann
5 cilt bulundu.
Cilt sonuçları
Guide to drying defects
David R. Schumann · USDA Forest Service, Northeastern Area
14 sayfa · 1984
Forests and forestry / Timber / Lumber / Drying / Wood defects
Dimension yields from black walnut lumber
David R. Schumann · U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory
16 sayfa · 1971
Eastern black walnut / Lumber / Measurement
Dimension yields from alder lumber
David R. Schumann · U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory
12 sayfa · 1972
Red alder / Lumbering
Yields of random-width dimension from 4/4 hard maple lumber
David R. Schumann · Forest Products Laboratory
12 sayfa · 1967
Production control / Hardwoods / Lumber trade
Effect of tension wood on hard maple used for manufactured parts
David R. Schumann · U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory
Sayfa sayısı yok · 1969
Wood / Defects / Sugar maple