GB/T 1927.20-2021无疵小试样木材物理力学性质试验方法第20部分:抗劈力测定标准
英文:Test methods for physical and mechanical properties of small clear wood specimens—Part 20: Determination of cleavage ...
英文:Test methods for physical and mechanical properties of small clear wood specimens—Part 20: Determination of cleavage ...