Sejournet extrusion process

例句：

1. 1.The extrusion process is crucial in the production of plastic pipes.
   挤压过程在塑料管道生产中至关重要。
2. 2. The engineer used a special machine to extrude metal sheets into tubes.
   工程师使用一种特殊的机器将金属板材挤压成管状。
3. 3. The extrusion process helps to improve the strength and durability of the material.
   挤压过程有助于提高材料的强度和耐用性。