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第1楼2008/11/26
ASTM D 2915-03 Standard Practice for Evaluating Allowable Properties for Grades of Structural Lumber
ASTM D 2915-03 Standard Practice for Evaluating Allowable Properties for Grades of Structural Lumber
ASTM D 5536-94(R04)Standard Practice for Sampling Forest Trees for Determination of Clear Wood Properties
ASTM D 5536-94(R04)Standard Practice for Sampling Forest Trees for Determination of Clear Wood Properties