DIN 21318:1989
矿山坑道用圆木.桩木，支撑柱
Round pit timber; pillar, supports
- 标准号
- DIN 21318:1989
- 发布
- 1989年
- 发布单位
- 德国标准化学会
- 当前最新
- DIN 21318:1989
- 被代替标准
- DIN 21318-64
- This standard is to set the dimensions and qualitities for chock wood which is to be used for supporting purposes.