On July 15, 2013, anshan science and technology commission and anshan finance bureau came to our company to inspect the progress of anshan science and technology plan "oil free lubricating oil and gas recovery compressor" project.

On June 25, 2013, the "oil-free oxygen compressor" innovation fund project for small and medium-sized enterprises passed the preliminary examination of the department of science and technology of liaoning province, and was reported to the state for examination and approval.

On May 28, 2013, the company signed an industry-university-research cooperation agreement with shenyang institute of computing technology, Chinese academy of sciences.

May 20, 2013, Beijing shougang gas industry base lbky-6/40 screw machine and all-oil-free piston machine series through joint debugging.

On May 7, 2013, the state intellectual property office accepted the utility model patent for oil and gas recovery compressor with no oil lubrication, patent no. : 201320239515.8.

On January 4, 2013, hebei metallurgical construction wwz-800/8-35 oxygen pipeline pressure oil-free nitrogen compressor passed the acceptance inspection.

On December 10, 2012, anshan science and technology project "oil-free oxygen compressor" won 150,000 science and technology fund.

November 18, 2012 anshan guorui chemical co., LTD. Wwz-200/5-55 oil-free nitrogen compressor commissioning success.

On August 8, 2012, "an oil-free oxygen compressor" won the national utility model patent, patent number: 2011 2 0563656.6.

May 6, 2012 shenyang university of technology wwz-72/2-50 all-oil-free oxygen booster passed acceptance.

In March 2012, the new silent oil-free oxygen compressor vwzd-4.2/1.5-10 prototype was sent to jiangsu yuyue group for type test.

On February 10, 2012, the company signed the industry-university-research cooperation project with liaoning university of science and technology.

On November 20, 2011, the company was identified as anshan high-tech enterprise by anshan science and technology bureau.

On November 20, 2011, the company was approved by anshan science and technology bureau to establish anshan oil-free compressor engineering technology research center.

On December 23, 2011, anshan oil-free compressor engineering technology research center was recognized as municipal enterprise technology center by anshan economic and information technology commission.

On May 20, 2011, together with Northeastern University, we provided technical solutions to the underquenching air supply system for high-speed rail.

On February 28, 2011, "a kind of reciprocating piston gas compressor without oil lubrication" was granted the utility model patent by the state intellectual property office. The patent number is 2011 2 0049143.3.