Y-shaped three-way connection pipe Y形三通管
three-way connection for gooseneck pipe 鹅颈管三通
three way connection
三通连接
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Axial compress expander forming has been used to production of high-grade thin-wall three-way connection made of red copper used for building and refrigeration.
介绍了采用轴向压缩胀形成形原理，生产高档建筑及制冷系统用薄壁紫铜管三通接头的成形工艺和模具结构。
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