GB/T 1927.9-2021无疵小试样木材物理力学性质试验方法第9部分:抗弯强度测定标准
英文:Test methods for physical and mechanical properties of small clear wood specimens—Part 9: Determination of bending st...
英文:Test methods for physical and mechanical properties of small clear wood specimens—Part 9: Determination of bending st...