GB/T 39395-2020热塑性塑料检查井井座抗压失稳试验方法标准
英文:Test method for buckling resistance of the thermoplastics inspection chamber bases GB/T 39395-2020介绍: 国家标准《热塑性塑料检查井井座...
英文:Test method for buckling resistance of the thermoplastics inspection chamber bases GB/T 39395-2020介绍: 国家标准《热塑性塑料检查井井座...