337p人体粉嫩胞高清大图av,国产欧美日韩精品丝袜高跟鞋,午夜18禁试看120秒男女啪啪,国产人与禽zoz0性伦

Chinese | English

Company Profile

Committed to becoming an international first-class supplier of petrochemical products and drilling engineering technology service provider.

Introduce

Shandong Deshunyuan Petro Sci & Tech Co. LTD (hereinafter referred to as “DSY”) is located in Shengli Oilfield (The second largest oilfield in China) of Dongying city. The company was founded in 1999 with 15 million USD registered capital. It is a high-tech enterprise which is dedicated to the new petroleum technology development and application. The company has more than 100 acres of drilling fluid workshops and more than 30,000 MT annual production capacity of drilling fluid additives.

The main business covers drilling fluid additives production, drilling fluid engineering service, harmless disposal technology service of drilling waste, R&D of chemicals for Oilfield. DSY provides drilling fluid products and technical proposal for the customers to help them maximize the productivity and cost-efficiency of their drilling operations.

As one of the first-class suppliers of SINOPEC, CNPC and COSL, the good product quality and the advanced technology promote our products to be widely applied in many domestic and international oilfields and receive a lot of praises from our customers. The products applied in domestic oilfields such as Shengli Oilfield, Tuha Oilfield, Daqing Oilfield and international oilfields in Turkmenistan, Iraq, Kazakhstan, Sudan, Venezuela and so on.

DSY has established “Oilfield Chemical Engineering Center” (hereinafter referred to as “Center”) with China University of Petroleum. The Center covers drilling fluids lab, chemical synthesis lab, chemical analysis lab, reservoir protection lab, which are equipped with more than 100 sets of perfect advanced testing instruments.

DSY has more than 120 employees, includes 48 employees with BA degrees, 8 employees with senior title, 15 scientific researchers, 35 technical personnel.

DSY has set up advanced and improved inner control system and quality control system, it has passed API, ISO9001, ISO14001, ISO18001, HSE of CNPC and Sinopec.

DSY is your best partner to provide professional drilling fluid products and engineering services in oilfield drilling industry.

 

 

Provide the highest quality products and services to customers worldwide
Committed to becoming an international first-class oilfield chemical supplier
Contact Us
再深点灬舒服灬太大了添a片小说| 甜蜜惩罚我是看守专用宠物| 学长别揉了~流水了想要~| 欧美人与物videos另类| 男男调教惩罚做到哭play| 午夜时刻免费入口| 国产熟女老妇300部mp4| 中文字幕亚洲乱码熟女在线萌芽| 护士夏子的热情夏天| 斯文教授×貌美学生1v1h| 女人野外做爰a片妓女| 国产寡妇xxxx猛交| 我们的日子电视剧免费观看完整版| 少妇无套内谢久久久久| 精品人妻人人做人人爽夜夜爽| 日本人妻巨大乳挤奶水app| 日本免费无码一区二区到五区| 精品国内自产拍在线观看视频| 脱岳裙子从后面挺进去视频| gogo全球高清大胆国模| 欧美一区二区三区成人片在线| 精品无码av一区二区三区不卡| 色噜噜狠狠一区二区三区果冻| 狂性xxxx乱大交老女人| g0g0全球高清大胆人休艺术网| 极品尤物一区二区三区小说| 婷婷97狠狠成人网站| 偷拍农民工嫖妓bbbbb| 女沟厕偷窥piss小便| 人妻女友娇妻沉沦系列| 真实的国产乱xxxx在线四季| 全彩h无翼乌绅士本子库百合| 日本无码小泬粉嫩有套在线| 少妇洁白无删减版178章| 国产天美传媒一起又看流星雨| 性高湖久久久久久久久aaaaa| 亚洲毛片| 人禽无码视频在线观看| 国产免费一区二区三区免费视频| 国产未成女younv仙踪林| 被夫の上司に犯中文字幕|