特点：生产效率高，生产范围广，自动化程度高，易于操作，管材不易变形。

Featues: high efficiency, wide range of products, high degree of automation, easy operation and uneasy distortion.

youdao

特点：生产效率高，生产范围广，自动化程度高，易于操作，管材不易变形。

Featues: high efficiency, wide range of products, high degree of automation, easy operation and uneasy distortion.

youdao