波多野结衣国产精品,国模欢欢炮交啪啪150,国产精品高潮无码毛片,国产精品免费视频不卡

Products & services

Polypropylene Anti-corrosion Coating  2LPP/3LPP

Product Introduction 

A coating prevents corrosion and provides mechanical protection of the external surface of metal pipes.

Product Advantage

Applicable for high-temperature environments, strong resistance to mechanical damage, increase the service life of pipeline and reduce operating costs.

Product Characteristics 

High coating adhesion, good flexibility and impact resistance.

Product Size

(a)Single pipe length: 8-18m;
(b)Pipe diameter: OD88.9mm-1420mm.

Product Performance 

(a)Performance better than: National Energy Administration issued standard SY/T 7041;
(b)German standard DIN30678;
(c)International standard ISO 21809-1;
(d)Det Norske Veritas standard DNVGL-RP-F106;
(e)French standard NF A49-711;

(f)Shell standard DEP 31.40.30.31 and other standard requirements.

Application Scope

·Natural gas and long-distance oil transmission  pipelines;
·Water pipeline, pile pipe;
·Chemical industry, slurry transportation pipeline.

Manufacturing Capability 

3 million m2/year.

日本一道一区二区视频| y淫淫婷婷色| 欧美日韩成人影院| 经典国产乱子伦精品视频| 久久亚洲日韩av一区二区三区| 亚洲精品无码成人影院| 狠狠躁日日躁夜夜躁| 奇米777在线视频| 又大又湿又紧又爽A视频| 人人操人人干人人爱| 久久国产城中村嫖妓| 97超碰人人爽夜夜操| 久久无码国产专区精品| 偷窥国产亚洲免费视频| 激情文学淫色人妻| 成人妇女免费播放久久久,| 国内精品久久久久久| 国产毛片在线看| 日本毛高清免费视| igao国产精品| 色色欧美网站| av无码东京热亚洲男人的天堂 | CHINA国语对白刺激VIDEOS| 久久久久久久久无码中文字幕 | 91极品尤物在线播放国产 | 夜夜影院未满十八勿进| 里番精品3D一二三区| 国产美女无遮挡裸色视频| 国产精品成人性爱视频| 成在人av抽搐高潮喷水流白浆| 被c躁到高潮打开腿爽爽爽| 亚洲妇女无套内射视频| 欧亚乱色熟一区二区三四区| 欧美极p品少妇的xxxxx| 91丝袜美腿高跟国产极品老师| 国产亚洲一在无在线观看| 人妻91无码色偷偷色噜噜噜| 五月丁香综合缴情六月小说| 男女裸体影院高潮| 91视频免费观看网站| 西西大胆午夜人体视频妓女|