commercial grade

例句：

1. 1. The company is known for its high-quality products in the commercial grade.
   该公司以其高质量的产品而闻名，属于商业等级。
2. 2. The new product line has been designed to meet the commercial grade requirements of the market.
   新产品线已经设计以满足市场的商业等级要求。
3. 3. The company's commitment to excellence sets it apart from competitors in the commercial grade.
   公司对卓越的承诺使其在商业等级中脱颖而出。