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)
国产精品-区区久久久狼| 在熟睡夫面前侵犯我在线播放| 国产美女精品一区二区三区| 国产av影片麻豆精品传媒 | 免费a级毛片高清在钱| 好紧我太爽了视频免费| 偷偷要偷偷鲁影院| 无码a级毛片免费视频内谢| 成人性生交片无码免费看| 日韩亚洲av人人夜夜澡人人爽| 亚洲一区二区三区在线观看网站| 性无码专区无码| 亚洲 中文字幕 日韩 无码| 女人与公拘交酡全过女免费| 中文字幕一区二区三区日韩精品| 久久伊99综合婷婷久久伊| 久久天天躁狠狠躁夜夜avapp | 久久人人爽人人爽人人片av高请| 成人区人妻精品一区二区不卡视频 | 日韩一区精品视频一区二区 | 国产suv精品一区二区五| 五月综合激情婷婷六月| 奶头好大揉着好爽视频| 亚洲日韩爆乳中文字幕欧美| 日韩无码专区| 国产极品美女到高潮| 亚洲va中文字幕无码毛片| 成人av无码一区二区三区| 2021国产精品国产精华| 开心五月激情综合婷婷色| 精品无码黑人又粗又大又长| 婷婷综合久久中文字幕蜜桃三电影| 性xxxxx大片免费视频| 国产av一区二区三区| 亚洲国产精品一区第二页| 午夜福利09不卡片在线机视频| 亚洲av永久无码精品天堂动漫| 99久久久国产精品免费蜜臀 | 98在线视频噜噜噜国产| 亚洲精品成人网久久久久久| 日韩午夜福利免费理论片秋秋|