精密异型材
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precise shape wire
精形线材
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In consideration of the characteristic of brass precise shape-wire used for glasses hinge, the manufacturing process of extrusion and drawing has been studied.
针对眼镜等行业用黄铜精密异型材特点，对其生产工艺挤压—拉拔法进行了研究。
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