Note: If match special flange, please let us know before production.
注：如果法兰接口特殊，请与我们联系。
I plant mainly produces all kinds of high, medium, low flange, ring, forging, gear and special flange.
我厂主要生产各种高、中、低压法兰，环件、锻件、齿轮及异型法兰。
This paper introduces the method of partition the normal gas transmission to stop the aged pipe transmission by using the special flange and reducing pipe.
介绍了一种使用专用法兰和变径短管封堵煤气管道停止老化管道运行的新方法。
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