... 2.锦纶帘布加强层/ Synthetic cord reinforced rubber layer 3.内层胶/ Inner Rubber 4.端部法兰/ End Flange ...
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同时，端部法兰和顶盖骑缝中的螺纹孔可以一次性加工完成，加工制造简单方便。
At the same time, the high-neck flange and the cap straddle the screw hole can be completed a one-time processing, manufacturing is simple and convenient.
钢管和管件有两种标准端部型式，即：法兰和丝扣。
Two types of end are standard on steel pipes and fittings, that is flanged and screwed.
钢管和管件有两种标准端部型式，即：法兰和丝扣。 。
Two types of end are standard on steel pipes and fittings, that is flanged and screwed.
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