亚洲中文字幕久久精品无码APP_人妻[21P]大胆_亚洲精品9999久久久久无码_久久精品久久精品中文字幕

<dir id='GMCoY'><del id='jh2dK'><del id='sFSOi'></del><pre id='z7A8O'><pre id='82TuB'><option id='a0gDT'><address id='DxFy1'></address><bdo id='AVVGI'><tr id='nvIfh'><acronym id='DzlSR'><pre id='GCvWY'></pre></acronym><div id='O4iXX'></div></tr></bdo></option></pre><small id='jbxth'><address id='50uYR'><u id='Nl4yA'><legend id='MtNm8'><option id='LYxVn'><abbr id='bcTKl'></abbr><li id='HN8Ty'><pre id='m8o9m'></pre></li></option></legend><select id='Dewbe'></select></u></address></small></pre></del><sup id='vI7vl'></sup><blockquote id='vp7Zm'><dt id='vNMgf'></dt></blockquote><blockquote id='2qUNj'></blockquote></dir><tt id='ank0o'></tt><u id='PeP0E'><tt id='GBwR3'><form id='Dgyy1'></form></tt><td id='sQhGd'><dt id='Jvi4u'></dt></td></u>

<code id='1BD9K'><i id='nRlNV'><q id='buTSS'><legend id='QPdnj'><pre id='dXuM6'><style id='1yeuh'><acronym id='aydmz'><i id='GQEY2'><form id='YVAd8'><option id='XBgnI'><center id='n64xE'></center></option></form></i></acronym></style><tt id='dh1cU'></tt></pre></legend></q></i></code><center id='ZM2FU'></center>

<dd id='gZHlH'></dd>

<style id='uhKrE'></style><sub id='oihq7'><dfn id='ihRJ2'><abbr id='ihsIT'><big id='Avi6e'><bdo id='Hxw2N'></bdo></big></abbr></dfn></sub>_{<dir id='2VqN2'></dir>}

高強度聚氯乙烯（HPVC)雙壁波紋管

詳細信息

高強度聚氯乙烯（HPVC)雙壁波紋管內、外壁之間呈中空環狀結構，充分利用工字鋼結構原理，提高截面慣性矩，環鋼度高。產品具有強度高、韌性好、質地輕等優點。產品運用開挖工程，可代替MPP單壁波紋管、玻璃鋼管、PVC-C電力管、PVC-U通信管等管材。

產品性能

規格型號：

?

<tfoot id='kfb89'></tfoot>

<legend id='kfb89'><style id='kfb89'><dir id='kfb89'><q id='kfb89'></q></dir></style></legend>

<i id='kfb89'><tr id='kfb89'><dt id='kfb89'><q id='kfb89'><span id='kfb89'><b id='kfb89'><form id='kfb89'><ins id='kfb89'></ins><ul id='kfb89'></ul><sub id='kfb89'></sub></form><legend id='kfb89'></legend><bdo id='kfb89'><pre id='kfb89'><center id='kfb89'></center></pre></bdo></b><th id='kfb89'></th></span></q></dt></tr></i><div id='kfb89'><tfoot id='kfb89'></tfoot><dl id='kfb89'><fieldset id='kfb89'></fieldset></dl></div>