The backflow preventer must be supported and is not designed to carry full weight of the stand pipe.
防回流阀必须有所支撑，不能用于承载立管的全部重量。
The lower part of the water outlet device is a stand pipe, and the stand pipe is connected with the flared mouth as an integrity.
漏水器下部为一竖管，竖管和喇叭口相连并形成一个整体。
WAB single riser drainage system is a special kind of single stand pipe drainage system which has been widely used in engineering practice in our country.
WAB型单立管排水系统属于管件特殊类单立管排水系统，在国内已广泛地应用于工程实际。
The company is producing kinds of bicycle handle, stand pipe, baby carrier aluminosilicate cover board and other products. The quality reach JIS standard of Japan and industrial standard of German.
公司致力于开发生产各档自行车铝闸把，自行车立管及童车铝盖板等多种产品，质量达到日本JIS标准和德国工业标准。
The company is producing kinds of bicycle handle, stand pipe, baby carrier aluminosilicate cover board and other products. The quality reach JIS standard of Japan and industrial standard of German.
公司致力于开发生产各档自行车铝闸把，自行车立管及童车铝盖板等多种产品，质量达到日本JIS标准和德国工业标准。
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