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标题: NPT螺纹,PT螺纹,G螺纹和公制螺纹的含义和区别 [打印本页]

作者: 浪漫满屋    时间: 2011-7-13 11:19
标题: NPT螺纹,PT螺纹,G螺纹和公制螺纹的含义和区别
NPT螺纹,PT螺纹,G螺纹和公制螺纹的含义和区别





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