DIN EN 61061-3-2 Bb.1-2014 电气用非浸渍致密层压木. 第3部分: 单项材料规格. 活页2: 山毛榉胶合板环材; 补充件1: 类型对比
Non-impregnated densified laminated wood for electrical purposes - Part 3: Specifications for individual materials - Sheet 2: Rings produced from beech veneer; Supplement 1: Comparison of the types