The most accurate and industry-standard translation for "风机法兰" is:

  The flanges for wind turbines in Etuoke Qianqi (or Etuokeqianqi) are critical mechanical connectors used in the wind turbine system to join the inlet/outlet pipelines, equipment, or components. Their primary function is to ensure reliable connections between different parts via fasteners such as bolts and gaskets, thereby guaranteeing system airtightness, operational stability, and safety.

There are two main manufacturing processes for these flanges:

Rolled flanges (卷制工艺): Produced by rolling sheet metal into a cylindrical shape and then welding the seam to form the flange body. This method is suitable for large-diameter flanges and is cost-effective for certain specifications.

Cut flanges (割制工艺, also known as forged/plate-cut flanges): Manufactured by cutting pre-forged or plate blanks into the desired flange shape through processes like plasma cutting, laser cutting, or flame cutting. This approach is often used for smaller diameters or customized designs, offering higher dimensional accuracy and material consistency.