salt manufacturing

例句：

1. 1. The company's main product is salt manufacturing equipment.
   该公司的主要产品是盐制造设备。
2. 2. Salt manufacturing is a complex process that requires high-quality raw materials.
   盐制造是一个复杂的过程，需要高质量的原材料。
3. 3. The salt manufacturing industry has been facing challenges due to environmental regulations.
   由于环境法规，盐制造业面临挑战。