Standard Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size Specimens

 
  • 確定實(shí)尺樣品分級試驗中目測級量度木材的允許參數
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan