热塑性塑料管材耐外冲击性能试验方法 meaning in English
thermoplastics pipes-determination of resistance to external blows-round-the-clock method
Examples
- Thermoplastics pipes - determination of resistance to external blows - round - the - clock method
热塑性塑料管材耐外冲击性能试验方法时针旋转法