premium grade material meaning in English
高级材料
Examples
- The enterprise uses the 60sizmn material produced by state - owned large - scale enterprises and other premium grade material , which is even superior to the national standard
该企业自创建以来，一直使用国家大型企业生产的60i2mn材料和高于国家标准的高等级材料生产各种钢板弹簧。