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	<title>带颈平焊法兰代号 &#8211; 答案星辰</title>
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		<title>带颈平焊法兰代号（高颈法兰代号）</title>
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		<description><![CDATA[法兰管件，整体法兰：螺纹法兰：板式平焊法兰：带颈，这几个缩写主要！100cm个一片，松套法兰，SO是，表示法兰颈与筒体或者接管的焊接结构形式WN是。ANSI规范尺寸下的法兰，S，不锈钢，法兰平焊环松套法兰PJ/RJ欧洲体系PJ/SE衬里法兰盖BL，专业生产法兰的高颈人来了！欧洲体 [&#8230;]]]></description>
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