国产精品视频一区二区三区无码,99精品视频在线观看免费,波多野结衣av高清中文字幕,天天综合爱天天综合色

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
天天摸日日添狠狠添婷婷| 国产无遮挡无码视频免费软件| 九月婷婷人人澡人人添人人爽| 色婷婷一区二区三区四区成人网| 在线观看国产成人av片| 免费精品无码av片在线观看| 亚洲 小说区 图片区 都市| 四虎av永久在线精品免费观看| 丰满又黄又爽少妇毛片| 国内偷窥一区二区三区视频| 亚洲av无码乱码精品国产| 亚洲日韩国产成网在线观看| 18禁黄无遮挡网站免费| 免费无码一区二区三区 | 国产在线无码一区二区三区| 人人妻人人澡人人爽人人精品浪潮 | 亚洲美腿丝袜 欧美另类| 97日日碰曰曰摸日日澡| 国产精品自产拍在线观看 | av色国产色拍| 国产乱子影视频上线免费观看 | 免费黄色电影在线观看| 亚洲综合欧美色五月俺也去| 两个人的视频免费高清在线观看| 玩弄人妻少妇精品视频| 放荡开放的人妻穿丁字裤凹| 小辣椒福利视频导航| 成人欧美一区二区三区在线| 国产亚洲色婷婷久久99精品| 亚洲av成人无码久久www| 精品欧美一区二区在线观看| 少妇粉嫩小泬喷水视频| 亚洲av无码乱码在线观看牲色 | 亚洲精品成人片在线观看| 亚洲成av人片在线观看www| 无码专区狠狠躁躁天天躁| 国产成人精品无码播放| 丰满人妻无奈张开双腿av| 亚洲国产精品18久久久久久| 久久久国产精华液| 亚洲av无码码潮喷在线观看|