国产成人午夜福利在线小电影丨无码区a∨视频体验区30秒丨大香j蕉75久久精品免费8丨精品国产一区二区三区蜜殿丨亚洲国产一区精品丨国产精品久久国产愉拍丨一本色道av久久精品丨亚洲热在线视频丨日日躁狠狠躁狠狠爱丨日本高清有码视频丨国产日产欧产精品精乱了派丨99热国产精品丨a天堂资源在线丨偷拍激情视频一区二区三区丨亚洲日韩中文字幕天堂不卡丨久久久黄色网丨www狠狠丨天天色踪合丨亚洲人成网站在线观看播放丨另类国产

HPVC-solid wall pipe

High Strength Polyvinyl chloride are characterized by high strength, high toughness, high compressive strength, good flame retardancy and corrosion resistance. The product can replace galvanized, plastic or galvanized steel pipe, crossing road or bridge as communication cable protection pipe, can replace MPP, PE pipe for trenchless pipe.

093911_844.png

Product performance

實壁管22.jpg

5-1111111.jpg5-22.jpg

?
為您報價