The head of auxiliary nozzle of air-jet loom is made by calendering process.
The most commonly used auxiliary nozzle is made of stainless steel. The stainless steel plate is heated, then calendered and stretched to become a bottle cap shaped thin-walled part with large circumference and low height, and then calendered for many times to gradually calender the shape to the shape of the finished product of the auxiliary nozzle.
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