国产一区日韩二区欧美三区,国产成人av在线影院,欧美乱人伦视频在线观看,日本高清在线一区二区三区

Continuously winding glass fiber reinforced plastic pipe jacking

Continuous wound fiber Glass Reinforced Plastic pipe- jacking (abbreviated as GRP) is a new type of pipe jacking made from resin, glass fiber (continuous + short cut) and quartz sand by continuous winding process. The pipe has axial reinforced short cut glass fiber which improves the axial compression strength.

001.png

Performance feature

GRP pipe-jacking not only has the advantage of light, high strength, corrosion resistance and excellent hydraulic properties like glass reinforced plastic pipe, but also has the following characteristics.  

1. High axial compression strength, high allowable jacking force

The index value of axial compression strength ≥85MPa, The typical value is about 95 Mpa, the allowable jacking force is greater than that of the traditional pipe, the distance between the two operational wells can be long.

2. Applicable to all kinds of working conditions.

GRP pipe-jacking is not easy to sink in muddy soil and is suitable for various complicated working conditions.   

 11.jpg

Application field: it can be used in the roads that are not suitable for excavation, such as river, railroad track and highway. 

Specification model

頂管22.png

?
為您報價
久久精品99久久香蕉国产| 中文天堂在线www| 精品亚洲综合成人网| 欧美 日韩 国产 亚洲 色| 黑人粗硬进入过程视频| 国产成人精品人人| 国产美女牲交视频| 日韩精人妻无码一区二区三区| 国精产品一二三区传媒公司| 精品国产一二三产品价格| 久久久久久自慰出白浆| 精品日产一卡二卡| 国产精品一区二区av| 亚洲国产一区二区a毛片日本| 久久精品人成免费| 久久婷婷综合缴情亚洲狠狠_| 狠狠人妻久久久久久综合蜜桃| av国产传媒精品免费| 日韩毛片无码永久免费看| 国精品人妻无码一区二区三区d3 | 成年无码aⅴ片在线观看| 亚洲精品国产电影| 18禁无遮挡无码国产免费网站| 国产精品久久久久久影视| 国产免费爽爽视频| 97在线观看播放| 亚洲狠亚洲狠亚洲狠狠狠| 国产99久一区二区三区a片| 性男女做视频观看网站| 无码里番纯肉h在线网站| 亚洲人成日韩中文字幕不卡| 人妻内射一区二区在线视频| 日韩精品少妇无码受不了| 人妻无码一区二区不卡无码av| 97视频热人人精品免费 | 久久伊人色av天堂九九小黄鸭| 成人区人妻精品一区二区不卡视频| 日韩电影久久久被窝网| 久久精品无码一区二区三区免费| 日韩精品一卡二卡3卡四卡2| 内射国产内射夫妻免费频道|