00755nam a2200277 a 450000100080000000500110000800800410001910000170006024500550007726000680013230000090020049000460020965000190025565000160027465000310029065000150032165000200033665000100035665000110036665300120037765300250038965300130041465300140042765300130044170000230045412916391999-03-29       1990    bl uuuu     u0uu1 u    #d1 aGREEN, D. W.  aStress class systemsban idea whose time has come?  aMadison: USDA. Forest Service, Forest Products Laboratoryc1990  a22p.  a(USDA. For. Serv. Res. Paper FPL-RP-500).  aclassification  aengineering  aClassificação de Produto  aEngenharia  aMadeira Serrada  aNorma  aStress  aGrading  aResistencia mecanica  aSawnwood  aStandards  aStrenght1 aKRETSCHMANN, D. E.