日韩人妻无码一区二区,日美嫩B嫩BBBBBB,亚洲 精品一区二区三区,国产婬乱片A片AAA毛片下载,精品国产鲁一鲁一区二区赤裸特工
ABOUT US

Milestones
About Us Resume of Founder Corporate Structure Contact Us Honorary certificates
Sept 2019
The strategic cooperation between the company and Tsinghua University (School of materials) was officially signed.
Feb 2019
The company won the "2018 leading enterprise of high quality development"
May 2018
The company is recognized as a "high-tech enterprise".
Sept 2017
Through CNAs (National Laboratory Accreditation) expansion, renewal audit.
Aug 2017
Rio Tinto transfers all intellectual property rights, patents and trademarks of Hismelt technology to Meron.
Jul 2017
Pass special equipment manufacturing license (TS) renewal audit.
May 2016
The company's products are awarded the honorary title of "Shandong famous brand".
Jan 2016
The cylinder pipe products of the company have passed the factory approval assessment of BV.
Sept 2015
The company successfully passed the energy management system audit.
Nov 2014
The company's experiment center was officially approved by CNAs (Registration No.: CNAS L7225)
Aug 2013
The 90 ton electric furnace project of the company has been successfully tested.
Jan 2013
Maolong new material technology development Co., Ltd. was completed and put into operation.
Jul 2012
It was selected into the list of 100 key projects of "two districts" of blue and yellow in Shandong Province in 2012.
Jun 2012
The company won the title of "top 100 mechanical industry enterprises of Shandong Province" in 2011.
May 2012
Expert mobile workstation established in cooperation with Northeast University.
Feb 2012
It was awarded the honorary title of Weifang human resources social security integrity demonstration unit in 2011.
Jan 2012
The company was awarded the honorary title of Weifang integrity demonstration enterprise.
Dec 2011
The company's oil well pipe, oil well pump and oil well pumping unit won the title of Shandong famous brand.
Nov 2011
The trademark of the company "Molong group" is recognized as a well-known trademark in China.
Nov 2011
The company has been awarded the honorary title of "China's leading industrial enterprise".
Mar 2011
The company is rated as a class a supplier of seamless fluid pipe by CNPC.
Mar 2011
Has completed the corrosion test of 9Cr anti-corrosion oil well pipe material and the corrosion test of nickel plated sucker rod.
Dec 2010
180 oil special management transformation project officially put into operation.
Oct 2010
Shandong Molong A shares began to be subscribed, with the issuing price of 18 yuan / share.
Aug 2009
Shandong Molong "high steel oil casing project" and "special diameter and high resistance casing project" passed the expert group appraisal.
Jan 2009
Shandong Molong received the notification of winning the bid from China Petroleum Materials Company and won the 88666 ton oil casing order.
May 2008
Shandong Molong imported the most advanced oxygen, nitrogen and hydrogen NCS ONH 2000 gas analyzer from Germany.
Jan 2008
Shandong Molong has completed API certification again. And obtain API certificate.
Feb 2007
The company successfully completed the transition from gem to main board listing (Stock Code: HK568).
Mar 2006
Shandong Molong 250000 tons of oil hot rolling seamless pipe production line has been successfully commissioned.
2005
The company plans to build Baolong new material project with a total investment of 360 million yuan.
Apr 2004
H shares of Shandong Molong Petroleum Machinery Co., Ltd. were officially listed and traded on the gem of Hong Kong stock exchange.
2003
Shandong Molong invested 60 million yuan in the industrial park to build a 60000 ton oil well pipe project.
1999
Shandong Molong has been confirmed as a member of China's petroleum material and equipment export network.
Jan 1996
Meron has passed the ISO9000 quality management system certification and obtained the certification certificate.
1994
Establishment of Shandong Molong Group Corporation.
1992
Shouguang petroleum machinery factory was renamed as Weifang Molong Industrial Corporation.
1991
Shouguang petroleum machinery factory has applied for registration of "Meron trademark".
1987
Set up Shouguang petroleum machinery parts factory, engaged in production and sales of petroleum machinery parts.
亚洲无码免费在线观看 | 性猛交XXXX免费看蜜桃 | 成人精品一区二区,久久久 亚洲国产精品成人做爰A片 | 精人妻无码一区二区三区 | 久久综合日韩一区价格表2023 | 91熟女丨91老女人 | 91凄人人澡人人爽人人精此品 | 日韩精品无码一二三区91嫩草 | 亚洲AV无码乱码A片 欧美熟妇婬乱A片免费 | 午夜成人色情在线观看视频 | 蜜桃av噜噜一区二区三区 | 久久精品99久久久久久2456 | 一级片免费在线观看视频 | 国产精品一区视频在线观看 | 免费无码毛片一区二区APP | EEUSS影院www免费手机 | 99精品在线免费观看 | 国产熟妇婬乱一区二区在线 | 清纯唯美美腿丝袜国产精品一区 | 少妇搡bbbb搡bbb搡视频一级 | 日本无码中文字幕乱偷在线 | 女人高潮特黄aaaaa毛片 | 中文字幕人妻在线视频 | 国产无码精品久久豆腐 | 亚洲日韩欧美一区二区三区 | 最好看的MV中文字幕国语电影 | X免费污网站永久进入入口网站 | 国产精品久久久久久久一区探花 | 欧美性高朝爽爽阴性 | 国产高清一级毛片在线不卡 | 欧美精品久久八十三区 | 亚洲AV中文无码乱人 | 久久精品噜噜噜成人看免欧美大片 | 亚洲中文AⅤ中文字幕艳妇 国产熟妇婬乱A片在线观看 | 国产女人18无片水多18精品 | 国语对白乱妇激情视频 | 亚洲AV无码专区国产精品色欲 | 狠狠躁夜夜躁人人爽天天天天97 | 欧美freesex黑人又粗又大 | 99re66在热线视频国产 | 你懂的视频男女国产精品 |