精品国产一区二区三区波多,亚洲永久av乱码一区二区,人人爽人人澡人人妻免费毛片,清纯大学生囗交在线视频,中文 内射 亚洲 人妻,亚洲 欧美 日韩 在线,色视频在线一区二区三区,国产内射一级一片内射高清视频,欧美精品午夜久久久伊人

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.