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新聞内容： <P>碳钢弯头清仓处理，河北乾特管道设备有限公司<SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(100,100,100); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><FONT color=#000000>是河北一家大型的</FONT><A href="http://www.hbjjnnj.cn/index.html" target=_blank><STRONG>管件厂家</STRONG></A></SPAN><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体; WHITE-SPACE: normal; ORPHANS: 2; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0pt; COLOR: rgb(0,0,0); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><STRONG>、</STRONG><A href="http://www.hbjjnnj.cn/wantou/index.html" target=_blank><STRONG>弯头厂家</STRONG></A><STRONG>、</STRONG><A href="http://www.hbjjnnj.cn/sregerh/index.html" target=_blank><STRONG>法兰厂家</STRONG></A>，主要生产：<A href="http://www.hbjjnnj.cn/wantou/duihanwantou/index.html" target=_blank><STRONG>对焊弯头</STRONG></A><STRONG>、</STRONG><A href="http://www.hbjjnnj.cn/wantou/tangangwantou/index.html" target=_blank><STRONG>碳钢弯头</STRONG></A>等产品</SPAN>。公司产品应用广泛，了解更多详情欢迎登录<SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(63,63,63); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">：<SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(100,100,100); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><A href="http://www.hbjjnnj.cn/">www.hbjjnnj.cn</A></SPAN></SPAN><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(63,63,63); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(100,100,100); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"> </SPAN></SPAN></P>弯头的分类方法，按它的曲率半径来分，可分为长半径弯头和短半径弯头。长半径弯头指它的曲率半径等于1.5倍的管子外径，即R＝1.5D。短半径弯头指它的曲率半径等于管子外径，即R＝D。式中的D为弯头直径，R为曲率半径。若按压力等级来分，大约有十七种，和美国的管子标准是相同的，有：Sch5s、Sch10s、Sch10、Sch20、Sch30、Sch40s、STD、Sch40、Sch60、Sch80s、XS；Sch80、Sch100、Sch120、Sch140、Sch160、XXS，其中常用的是STD和XS两种。按弯头的角度分，有45o弯头，有90o弯头和180o弯头。这样一来弯头的种类是很多的，定货时定单常采取如下表示方法：如"LR　STD　90o　8"，表示长半径，压力等级为STD，90o的8"弯头；又如，"SR　XS　45o　4"表示短半径，压力等级为XS，45o的4"弯头。以上为弯头的大概分类情况。 <BR><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(63,63,63); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(100,100,100); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(63,63,63); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-STYLE: normal; TEXT-INDENT: 0px; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(100,100,100); FONT-WEIGHT: normal; WORD-SPACING: 0px; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"> <P><SPAN style="TEXT-ALIGN: center; WIDTH: 150px; HEIGHT: 113px; OVERFLOW: hidden"><A href="http://www.hbjjnnj.cn/wantou/chongyawantou/index.html" target=_blank><IMG style="BORDER-BOTTOM: rgb(200,200,200) 1px solid; BORDER-LEFT: rgb(200,200,200) 1px solid; PADDING-BOTTOM: 2px; PADDING-LEFT: 2px; PADDING-RIGHT: 2px; BORDER-TOP: rgb(200,200,200) 1px solid; BORDER-RIGHT: rgb(200,200,200) 1px solid; PADDING-TOP: 2px" border=0 src="http://www.hbjjnnj.cn/upfiles/proimages/201791210495932800.jpg" width=150 height=113></A></SPAN></P> <P>上一条：<A title=弯头厂家直销，送货到家 href="http://www.hbjjnnj.cn/NEWS/2624.html" target=_blank>弯头厂家直销，送货到家</A></P> <P>下一条：<A title=碳钢弯头工作原理 href="/NEWS/2629.html" target=_blank>碳钢弯头工作原理</A></P></SPAN></SPAN></SPAN></SPAN>

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