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		<title>大口径热扩管</title>
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					<description><![CDATA[大口径热扩钢管用斜轧法或拉拔法扩大管材直径的一种工艺。热扩技术钢管的出现既满足市场的需求，也降低了企业的采购成 [&#8230;]]]></description>
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<p>大口径热扩钢管用斜轧法或拉拔法扩大管材直径的一种工艺。热扩技术钢管的出现既满足市场的需求，也降低了企业的采购成本。大口径热扩钢管执行标准热扩无缝钢管：GB3087-1999，GB/T8163-1999 ，GB/T8162-1999。广泛应用于自来水、天然气、石油、化工、医药、通讯、电力、海洋等工程领域。</p>]]></content:encoded>
					
		
		
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