亚洲欧美日韩综合久久,国产成人精品日本亚洲77上位,香蕉av777xxx色综合一区,女人被做到高潮免费视频

About HILONG

HomeAbout HilongHilong Industry

GO Back

Sichuan Hilong Petroleum Technology Co., Ltd.

Sichuan Hilong Petroleum Technology Co., Ltd. is a subsidiary of Hilong Group, which specializes in providing products and services for the inner coating of petroleum-specific pipes. The company is located in the airport industrial cluster of Gaoping District, Nanchong City, Sichuan Province, which is the center of Chengdu, Chongqing and Dazhou. The transportation by road, waterway and air is extremely convenient, and the geographical transportation advantage is obvious.
Based in Sichuan, the company mainly serves oil fields in the southwest, northwest and other regions, as well as major domestic and foreign oil companies, oilfield service companies, major oil pipe manufacturers and distributors. The business scope includes: inner coating of oil drilling tools; inner coating of oil pipes, casings and conveying pipelines; inner coating processing of various elbows, tee pipes, sliding sleeves, valves and other special-shaped parts; anti-corrosion of gas field water tanks ; Drilling tool wear-resistant belt processing services.

Sichuan Hilong adheres to the core development strategy of scientific and technological innovation, relies on the platform of Hilong Petrochemical Research Institute, has strong scientific research and technical force, and at the same time gives full play to its geographical advantages, and cooperates with local scientific research institutes. Was rated as "high-tech enterprise". In particular, the company's surface pipeline inner coating, sliding sleeve, Hilock® plug-in technology and products have been widely used in southwest oil and gas fields and gathering and transportation stations, and have won unanimous praise from users!
The company's TC series inner coating products adopt Hilong's self-developed coating and spraying technology and equipment, and are committed to providing customers with high-performance and high-quality oil-specific inner coating products, which can effectively improve the corrosion resistance of the pipe body. Corrosion performance, improve fluid efficiency, reduce waxing and scaling, and improve the service life of pipes; and can provide users with more accurate and differentiated inner coating solutions according to environmental factors such as different well conditions and conveying media in which the pipes are used. Create greater economic benefits for users.

久久夜色精品国产欧美乱极品| 国产在线国偷精品免费看| 国产av一区二区三区日韩| 四虎成人精品无码| 精品久久久久久无码人妻| 人妻巨大乳挤奶水hd免费看 | 性xxxx18免费观看视频| 国产在线精品一区二区不卡| 国产日韩av在线播放| 波多野结衣av一区二区三区中文| 亚洲国产精品无码观看久久 | 日韩免费无码成人久久久久久片| 国产老熟女网站| 色伦专区97中文字幕| 国产亚洲精品久久久999蜜臀| 国内精品自在拍精选| 人妻无码久久一区二区三区免费 | 影音先锋中文无码一区| 欧美成人精品第一区| 夜精品一区二区无码a片| 国产一区二区三区四区五区vm | 国产成人精品一区二区三区| 亚洲国产成人久久精品99| 亚洲av午夜成人片精品网站| 亚洲成在人线在线播放无码 | 无码aⅴ免费中文字幕久久| 国产精品人人妻人人爽| 久久不见久久见免费影院www日本| 亚洲av无码一区二区三区四区| 四库影院永久国产精品地址| 在线va免费看成| 开心五月激情综合婷婷色| 亚洲熟女精品中文字幕| av无码电影在线看免费| 亚洲精品成人网站在线观看| 久久99精品久久久久久9| 人妻无码第一区二区三区| 亚洲国产精品毛片av不卡在线| 久久久精品人妻一区二区三区| 国产亚洲精品久久久久久武则天| 国产又色又爽无遮挡免费动态图 |