About TAKEDA TAKASHI
About sawn lumber
About characteristic
About full-scale test
About Cryptomeria japonica
About wood
About property of wood
About drying
About bending strength
About mechanical property
About strength characteristic
About full-scale test
About lumber
About flat square timber
About drying of wood
About wood property
About bending strength
About Nature and structure of wood(=timber)
About 製材品
About 強度特性