GB/T 39709-2020动车组玻璃、车窗耐静压及车窗密封性能试验方法标准
英文:Test methods of multiple units glass, windiows static pressure and windiows sealing performance GB/T 39709-2020介绍: 国家...
英文:Test methods of multiple units glass, windiows static pressure and windiows sealing performance GB/T 39709-2020介绍: 国家...