国产三级片在线观看,中文字幕免费高清电视剧,成人精品一区二区三区A片用毒蛇,特级西西人体WWWww

Kefengyuan Home > News > Industry news >

Products

Industry news

Polyethylene plastic steel winding pipe equipment to explain

Release time:2018-10-22 13:31

Wrapped polyethylene plastic steel pipe production equipment is a high-tech composite pipe product with independent intellectual property rights, world level, green environmental protection, energy saving and consumption reduction. This product is mainly used as buried drainage pipeline. It integrates the advantages of rigidity of steel strip and corrosion resistance of polyethylene, low friction resistance and wear resistance. At present, the HDPE plastic-steel winding pipe produced by the plastic-steel winding pipe production line developed by our company has been sold well at home and abroad, and is widely used in municipal engineering, sewage treatment plant and other key projects.
Characteristics of HDPE plastic steel winding pipe
1. Light weight, safe and simple, good sealing performance and low construction cost.
Because of the high stiffness-weight ratio of the plastic-steel wound pipe, its weight is lighter than that of any kind of pure plastic pipe with the same ring stiffness. Light weight, installation without large lifting equipment. Axial flexibility is good, laying on the bottom of the groove smoothness, low solidity requirements, strong ability to withstand the abnormal stress caused by improper installation. Sealed connection mode can be operated by hand with simple tools, without machinery, very simple and fast, reliable and no leakage.
2. Safe and reliable ring stiffness
Because the elastic modulus ratio of the two materials is greater than 200 and the weight ratio is greater than 7.85, the steel strip reinforcement makes the pipe (especially the large diameter pipe) have enough safe and reliable ring stiffness and relatively high stiffness-weight ratio compared with the pure plastic pipe.


聚乙烯塑鋼纏繞管設(shè)備

3. Strong resistance to abnormal burst loading.
Because of the high stiffness and good axial flexibility of pipe rings, the pipe can be defused by elastic deformation when uneven settlement of soil, floating of groundwater, excessive local ground load, earthquake and other sudden loads and disasters occur.
The stress generated can avoid leakage or damage due to excessive stress and deformation.
4, non-toxic
Black high density polyethylene (PE) pipes are inspected and approved by relevant health departments.
5. Smooth inner surface
The smooth inner surface of polyethylene (PE) pipeline will reduce the energy loss caused by friction and it is not easy to deposit in the pipeline. The flow resistance of PE pipe is 20-30% lower than that of cement pipe. The inner wall of PE pipe is smooth, the friction coefficient is small, and the sediment is not easy to aggregate in the pipe.


Tel

Top

日韩人妻无码一区二区 | 国产一级a毛一级a看免费人娇 | 国产女伦精品一区二区三区级 | 影音先锋在线资源播放 | 无码秘 蜜桃一区二区 | 下面抽搐喷白浆高清无码啊啊啊 | 国产又粗又猛又爽视频 | 久久久久久久综合影视 | 先锋资源站最新午夜导航 | 黄网站免费大全入口 | 无套内谢少妇无套内谢视频 | 国产成人AAAAA级毛片 | 色欲av久久人妻蜜臀免费网站 | 国产电影一区二区三区 | 特级西西444www无码视频免费看 | 日本熟女性爱视频 | 河北少妇揉BBB揉BBB | av一区二区在线观看 | 久久久久久久久一级二级三级桃艳 | 在线中文在线中文字幕 | 国产小视频在线播放 | 国产精品久久久久久久久久 | 男女激情动图麻豆视频 | 国产成人三级在线观看 | 天堂AV免费在线观看 | 国产99成人精品视频免费福利 | 欧美日韩r级视频手机在线 一区二区三区四区福利视频 | 嫖妓老熟女嗷嗷叫91在线 | 无码在线直播DVD | 妇搡BBBB精品一区二区 | 特级西西4444日本少妇 | 国产伪娘系列曦曦白丝露出 | 海角社区成人免费网站 | 26uuu亚洲日韩精品 | 无码人妻精品一区二区蜜桃网站 | 新sss在线观看丝 | 亚洲成人视频在线观看无码 | 中出人妻中文字幕无码 | 国产精品99精品无码视亚 | 亚洲少妇激情海角社区 | 一级少妇精品内射自慰久久久久久久密乳 |