roller leather grinding frame

例句：

1. 1. The roller leather grinding frame is crucial for the quality of our leather products.
   滚筒皮革磨光机框架是我们皮革产品质量的关键。
2. 2. The engineers worked tirelessly to improve the performance of the roller leather grinding frame.
   工程师们努力不懈地改进了滚筒皮革磨光机的性能。
3. 3. The new design of the roller leather grinding frame has greatly improved efficiency and reduced maintenance costs.
   新设计的滚筒皮革磨光机框架大大提高了效率并降低了维护成本。