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直角四通鑄鐵排水管W型配件直角四通　　四通為管件、管道連接件。又叫管件四通或者四通管件，四通接頭，用在主管道要分支管處。四通有等徑和異徑之分，等徑四通的接管端部均為相同的尺寸；異徑的四通的主管接管尺寸相同，而支管的接管尺寸小于主管的接管尺寸。四通是用于管道分支處的一種管件。對于采用無縫管制造四通來講，目前通常所采用的工藝有液壓脹形和熱壓成形兩種。

鑄鐵排水管W型配件直角四通

鑄鐵(tie)排(pai)水管(guan)(guan)(guan)W型配件直(zhi)角四(si)通(tong)(tong)　　四(si)通(tong)(tong)為管(guan)(guan)(guan)件、管(guan)(guan)(guan)道(dao)(dao)連接(jie)(jie)件。又叫管(guan)(guan)(guan)件四(si)通(tong)(tong)或者四(si)通(tong)(tong)管(guan)(guan)(guan)件，四(si)通(tong)(tong)接(jie)(jie)頭，用(yong)(yong)(yong)在主(zhu)管(guan)(guan)(guan)道(dao)(dao)要分(fen)(fen)支(zhi)管(guan)(guan)(guan)處(chu)。四(si)通(tong)(tong)有等徑(jing)和異徑(jing)之分(fen)(fen)，等徑(jing)四(si)通(tong)(tong)的接(jie)(jie)管(guan)(guan)(guan)端部均為相(xiang)同(tong)(tong)的尺(chi)寸；異徑(jing)的四(si)通(tong)(tong)的主(zhu)管(guan)(guan)(guan)接(jie)(jie)管(guan)(guan)(guan)尺(chi)寸相(xiang)同(tong)(tong)，而支(zhi)管(guan)(guan)(guan)的接(jie)(jie)管(guan)(guan)(guan)尺(chi)寸小(xiao)于(yu)(yu)主(zhu)管(guan)(guan)(guan)的接(jie)(jie)管(guan)(guan)(guan)尺(chi)寸。四(si)通(tong)(tong)是(shi)用(yong)(yong)(yong)于(yu)(yu)管(guan)(guan)(guan)道(dao)(dao)分(fen)(fen)支(zhi)處(chu)的一種管(guan)(guan)(guan)件。對(dui)于(yu)(yu)采用(yong)(yong)(yong)無縫(feng)管(guan)(guan)(guan)制造四(si)通(tong)(tong)來(lai)講，目前通(tong)(tong)常所采用(yong)(yong)(yong)的工藝(yi)有液壓(ya)(ya)脹形(xing)和熱壓(ya)(ya)成形(xing)兩(liang)種。

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