thinning grade

例句：

1. 1. The steel plate is beingthinned to the required thickness.
   钢板正在被减薄到所需的厚度。
2. 2. The companyhas implemented a new thinning grade forits products.
   该公司已经为其产品实施了一个新的减薄级别。
3. 3. The thinning gradeof the steel plate will affect its strengthand durability.
   钢板的减薄级别将影响其强度和耐用性。