eks2a.cn-日韩av一二三,极品少妇xxxx精品少妇,欧美精品乱码久久久久久按摩 ,一区二区三区**美女毛片

Hello! Welcome to the website of Dongda Machinery Manufacturing Co., Ltd!
 ※ BACK TO HOME ※ 中文  ※ English
company news
Your location: HOME > news> company news

Dongying Dongda Machinery Manufacturing Co., Ltd

Release time:2020-05-12     Browse times :


1、 Company Profile


Dongying Dongda Machinery Manufacturing Co., Ltd. is located in Dongying City, the beautiful and rich Yellow River Delta - the site of Shengli Oilfield and the estuary of the Yellow River. It was founded in January 2001 and covers an area of 70000 square meters. It is a professional manufacturer of petroleum drilling and production equipment and accessories, a national high-tech enterprise, and a member unit of Sinopec's first level supply network. Registered capital of 101.8 million yuan, fixed assets of 300 million yuan, with strong risk resistance ability. The company has strong technical strength, advanced production technology, complete testing equipment, and reliable quality. The company currently has 180 employees and the ability to produce various difficult metal parts, with an annual output value of over 200 million yuan.


2、 Main products and markets


In the development of more than a decade, a product system has been formed, mainly consisting of wellhead connection devices and ground equipment such as pumping unit accessories, wellhead accessories, oil and gas production wellheads, thermal production steam injection wellheads, wellhead compensators, steam injection pipelines, etc., supplemented by stainless steel fine sand control pipe downhole tools, drilling operation special tools such as elevators, lifting rings, and hooks. At the same time, in recent years, the company has also developed new products such as oil storage tanks, separators, heating furnaces, heat exchangers, and multifunctional oil well collectors for first and second class pressure vessels used in petroleum and petrochemical industries. The speed regulating motors, heating furnaces, filters, and burners invented by our company have been widely used in oil fields, reducing the labor intensity of oilfield workers and improving production efficiency, and are highly welcomed by users.


3、 Production equipment


We have purchased several high-precision equipment such as VB-825A and NBP-1000A vertical machining centers, large vertical gantry planer and milling machines, large CNC boring machines, and fully functional CNC machine tools. We also have the ability to process mechanical parts through heat treatment, quenching, and high-frequency quenching. We have a 1000 ton pressure testing machine, magnetic powder testing, ultrasonic and radiographic testing capabilities for 12m length parts, a 15m long and 7m wide X-ray lead room, a 14 meter long and 6-meter wide paint room, and meet environmental protection requirements. The company's quality management is strictly established in accordance with the American Petroleum Institute's API quality management system, and raw material suppliers are carefully selected. Strictly implement product labeling and traceability control procedures, take product traceability as the red line of quality management, run through the entire process of business activities, and implement production status labels and inspection status labels at every link after raw materials enter the factory. The status label follows the product circulation system to ensure that records correspond one-to-one with physical objects, ensuring the product's qualification rate.


4、 Main qualifications and certificates


1. A-level pressure pipeline component production license


2. A-level pressure vessel production license


3. Maintenance Certificate for High Pressure Boiler in Oilfield


4. API 8C and API 5CT certificates


5. 4 invention patents and 35 utility model patents


5、 Quality Assurance System


Establishing and improving a quality management system and maintaining its effective operation is the core of an organization's quality management and the key to implementing quality management standards. Dongda Company is fully established in accordance with the modern enterprise system, strictly implementing scientific management, and establishing a sound quality system. A-level pressure pipeline components and A-level pressure vessel production license, A-level boiler maintenance certificate, and have passed ISO9001:2015 international quality system certification ISO14001: 2015 Environmental Management System Certification OHSAS18001: 2001 Occupational Health and Safety Management System and American Petroleum Institute API 8C and 5CT Qualification Certification.


6、 Service system


In order to meet the needs of the oilfield market, our company has also equipped an experienced and technically proficient customer service team of 30 people, 10 trucks and 15 small cars, to provide users with timely installation, commissioning, maintenance, after-sales and other technical services. We implement the "three guarantees" service commitment, truly making users feel at ease with product quality and satisfied with service. Our company has offices in Karamay, Korla, Nanyang, Zhongyuan and Daqing. Dongda Company promises that if there are any problems with our products during use, we guarantee to arrive at the site within 2 hours and provide service to customers.


Facing the future, Dongda Company will uphold the principle of harmonious development of society, nature, and resources, seek common development between the enterprise and society, and carefully build itself into a "global petroleum equipment supplier with independent intellectual property rights and well-known brands". In continuous development, we welcome friends from all over the world with open arms, cooperate sincerely, and create brilliance together!


[Return]   
欧美日韩大陆一区二区| 久久99精品国产.久久久久久| 欧美一级高清大全免费观看| 91丨porny丨国产| 丁香婷婷综合五月| 国产69精品久久久久毛片| 蜜臀av国产精品久久久久| 三级久久三级久久久| 日韩成人一区二区| 久久91精品国产91久久小草| 经典三级在线一区| 国产成人精品午夜视频免费| 成人黄色在线视频| 色综合 综合色| 欧美二区三区的天堂| 欧美一区二区三区系列电影| 日韩精品一区二区三区蜜臀 | 国产精品天天摸av网| 国产精品视频免费| 亚洲午夜羞羞片| 青青青爽久久午夜综合久久午夜| 免费的成人av| 国产成人激情av| 色猫猫国产区一区二在线视频| 色婷婷av一区二区三区之一色屋| 欧美日韩一区高清| 日韩精品在线一区二区| 国产精品你懂的在线| 一区二区三区欧美日| 美女脱光内衣内裤视频久久网站 | youjizz久久| 色女孩综合影院| 91麻豆精品国产91久久久更新时间| 欧美大片日本大片免费观看| 国产精品乱码人人做人人爱| 亚洲图片有声小说| 国产精品一区不卡| 欧美日韩三级在线| 国产精品丝袜一区| 日本中文字幕一区| av在线播放一区二区三区| 91精品久久久久久久99蜜桃| 国产日韩欧美电影| 午夜欧美电影在线观看| 风间由美一区二区av101 | 国产精品国产三级国产aⅴ入口| 国产欧美综合在线| 日韩精品三区四区| 99久久99久久综合| 精品国产凹凸成av人导航| 亚洲免费观看在线视频| 韩国在线一区二区| 欧美日韩你懂的| 国产精品乱人伦一区二区| 免费的国产精品| 欧美色区777第一页| 国产精品麻豆网站| 国产精品一区二区三区乱码| 欧美日韩视频专区在线播放| 国产精品午夜电影| 精品一区二区三区欧美| 欧美性大战xxxxx久久久| 国产精品乱码一区二区三区软件| 日韩高清一级片| 91亚洲国产成人精品一区二区三 | 欧美日韩国产区一| 国产精品乱码一区二区三区软件| 日本大胆欧美人术艺术动态| 日本韩国欧美在线| 亚洲欧洲日韩av| 国产成人一区在线| 欧美不卡123| 午夜av一区二区三区| 在线观看亚洲专区| 亚洲激情图片一区| www.日本不卡| 国产精品三级av在线播放| 国产精品一区三区| 久久看人人爽人人| 国产美女娇喘av呻吟久久| 久久综合九色综合97_久久久| 美女爽到高潮91| 制服丝袜一区二区三区| 石原莉奈在线亚洲三区| 欧洲亚洲精品在线| 一区二区三区.www| 91视视频在线观看入口直接观看www | 国产婷婷色一区二区三区在线| 日韩国产欧美视频| 91精品国产黑色紧身裤美女| 调教+趴+乳夹+国产+精品| 欧美日本一区二区在线观看| 亚洲国产精品久久久久婷婷884| 一区二区三区日韩精品视频| 一本色道久久加勒比精品| 国产精品成人午夜| 色综合久久综合| 亚洲va国产va欧美va观看| 欧美精选午夜久久久乱码6080| 亚洲va韩国va欧美va精品 | 一区二区三区美女视频| 欧美色精品在线视频| 日韩一区欧美二区| 精品少妇一区二区三区| 国产成人综合亚洲网站| 国产精品久久久久久久久图文区| 99在线精品视频| 亚洲大片一区二区三区| 91精选在线观看| 国产精品66部| 亚洲日本一区二区| 欧美性猛交一区二区三区精品 | 蜜桃视频一区二区| 久久久久久亚洲综合影院红桃| 成人深夜福利app| 伊人色综合久久天天人手人婷| 欧美精品亚洲二区| 极品少妇xxxx精品少妇偷拍| 国产精品成人一区二区三区夜夜夜| 色综合一区二区| 日韩国产成人精品| 国产视频不卡一区| 欧美午夜免费电影| 日本一区中文字幕| 国产精品三级av| 欧美日韩国产经典色站一区二区三区| 日韩影视精彩在线| 国产精品网曝门| 欧美男人的天堂一二区| 国产精品综合在线视频| 一区二区三区色| 久久久久久**毛片大全| 欧美性大战久久久久久久蜜臀| 国模一区二区三区白浆| 亚洲一区二区三区不卡国产欧美 | 国产亚洲一区字幕| 色嗨嗨av一区二区三区| 全国精品久久少妇| 亚洲欧美在线视频观看| 欧美大片免费久久精品三p| av高清久久久| 看国产成人h片视频| 亚洲男人的天堂在线观看| www国产亚洲精品久久麻豆| 欧美在线免费观看亚洲| 国产成人av影院| 蜜臀91精品一区二区三区| 中文字幕中文字幕一区二区| 日韩免费观看高清完整版| 色妹子一区二区| 国产精品一区二区在线观看网站| 亚洲电影你懂得| 国产欧美日韩三级| 久久色在线观看| 欧美一区二区黄色| 欧美日韩黄视频| jvid福利写真一区二区三区| 蜜桃久久久久久| 亚洲国产一区二区三区| 国产精品久久久久久久久动漫| 日韩一二三四区| 欧美美女视频在线观看| 在线观看日韩精品| 99re在线视频这里只有精品| 国产一区二区三区| 轻轻草成人在线| 青青草成人在线观看| 亚洲成人先锋电影| 亚洲精品ww久久久久久p站| 国产欧美日韩麻豆91| 国产欧美中文在线| 日本一区二区三区在线不卡 | 国产另类ts人妖一区二区| 麻豆精品一区二区av白丝在线| 亚洲第一成年网| 视频一区二区欧美| 一区二区三区不卡在线观看 | 欧美一级高清片在线观看| 日韩一区二区视频| 亚洲成人在线观看视频| 国产精品一区二区三区四区| 五月婷婷综合激情| 日韩电影在线观看电影| 国内外精品视频| 亚洲成人自拍偷拍| 亚洲私人影院在线观看| 中文字幕一区日韩精品欧美| 国产欧美一区二区精品仙草咪| 精品噜噜噜噜久久久久久久久试看| 日韩欧美一区二区视频| 日韩精品中文字幕一区二区三区 | 久久久久免费观看| 国产欧美日韩激情| 亚洲丝袜制服诱惑| 一级日本不卡的影视| 视频在线观看91| 国产精品影视网| 色婷婷激情综合| 欧美精品精品一区| 久久天天做天天爱综合色|