Recommended working stresses for visually stress-graded Philippine timber species
1981
Espiloy, E.B. Jr. (Forest Products Research and Industries Development Commission, College, Laguna (Philippines))
This report presents recommended working stresses for 144 Philippine timber species graded in the order of 80%, 67%, and 56%. The grades and the associated working stresses established, conform to a basic series of preferred numbers in geometric progression
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