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(bào)價(jià)
精品熟女少妇av免费久久| 四虎成人精品永久免费av| 欧美人与zoxxxx乱叫| 国产高清在线精品一区app| 蜜桃视频无码区在线观看| 欧美老熟妇乱子| 亚洲视频 中文字幕| 欧美色aⅴ欧美综合色| 久久九九久精品国产免费直播| 色五月激情五月| 一本大道加勒比久久| 日本伊人精品一区二区三区| 伊人激情av一区二区三区| 伊人久久精品无码麻豆一区| 国产午夜成人久久无码一区二区 | 日本一本免费一二区| 在教室伦流澡到高潮hgl视频| 一本大道加勒比久久| 在线欧美精品一区二区三区| 色视频综合无码一区二区三区| 精品无码av无码专区| 啦啦啦免费视频播放在线观看| 亚洲欧洲久久av| 18无码粉嫩小泬无套在线观看 | 麻豆网神马久久人鬼片| 亚洲欧美日韩综合久久久| 国产精品萌白酱永久在线观看| 亚洲精品无码久久| 97精品久久天干天天天按摩| 国产情侣一区二区| 麻豆精品久久久久久久99蜜桃| 中文字幕av日韩精品一区二区| 人妻无码一区二区视频 | 野花社区在线视频最新| 国产女人乱子对白av片| аⅴ天堂中文在线网| 亚洲av无码成h人动漫在线观看| 超薄丝袜足j好爽在线| 国产小屁孩cao大人| 少妇被躁爽到高潮无码久久| 国产无吗一区二区三区在线欢 |