<th id="inscw"><video id="inscw"></video></th>

    <thead id="inscw"><option id="inscw"></option></thead>

      <thead id="inscw"><option id="inscw"></option></thead>
      <strike id="inscw"></strike>

      <tr id="inscw"><option id="inscw"></option></tr>
      <th id="inscw"><video id="inscw"></video></th>
      <object id="inscw"></object>

      成a人电影在线观看日本|理论无码,在线亚洲一区二区三区,在线亚洲一区二区三区,国产亚洲日韩在线播放更多

      关于我们
      关于我们

      Company History


      2021

      Won the "specialized and special new" small giant enterprise

      2020

      Prefabricated sand based ultra-low energy consumption building“ "Three sources in one" fresh air energy system; Roof, balcony planting and vertical green wall building

      2019

      Invention of "sand plastic self insulation building profile" technology

      2017

      Won the Geneva International Gold Award for invention

      2016

      Sandwood industrialization technology of successful development

      2015

      Sponge paddy field technology successfully developed

      2013

      "National sponge City Innovation Research Center" listed

      2011

      "Sand art relief" products were successfully developed

      2010

      "Breathing" flowerpot products were successfully developed

      2008

      "Silicon sand honeycomb water storage self purification technology" has been successfully developed

      2007

      State Key Laboratory of silica sand resources utilization established

      2006

      "Oil (gas) permeable and water blocking functional proppant" was successfully developed

      Won the second prize of Beijing Science and Technology Progress Award


      2005

      "Sand based permeable brick" has been successfully developed

      The inventor was cordially received by General Secretary Hu Jintao, and the product was called "a good product beneficial to the country and the people" by General Secretary。

      2003

      "High strength and low density membrane covering proppant" was successfully developed

      2000

      ZFS-K series special coated sand technology was successfully developed

      Won the second prize of science and technology progress of China Machinery Industry Federation in 2007

      1996

      Renchuang technology company developed into Renchuang technology group

      1994

      Great Wall foundry company was transformed into Beijing Renchuang technology company

      1992

      Great Wall foundry company (predecessor of Renchuang Technology Group) was established

      1991

      He invented "high temperature resistant coated sand for shell mold casting" and won the National Invention Award

      1988

      High temperature resistant coated sand" invented

      1986

      In 1986, the first coated sand production plant in China was established

      1985

      Successfully researched the first generation of coated sand

      Won the third prize of science and technology progress of Ministry of machinery in 1987

      1981

      Get to know the sand

      Beijing Renchuang Technology Group Co., Ltd.

       WeChat public account

      Beijing Renchuang Technology Group Co., Ltd.

       Douyin QR code

      Contact Us

      CONTACT US

       

      Unit:Beijing Renchuang Technology Group Co., Ltd.

      Address:5th Floor, Block B, Jiahua Building, No. 9 Shangdi Third Street, Haidian District, Beijing

      Postcode:100085

      Beijing Renchuang Technology Group Co., Ltd. All rights reserved          京ICP备13002673号-1  

      成a人电影在线观看日本|理论无码,在线亚洲一区二区三区,在线亚洲一区二区三区,国产亚洲日韩在线播放更多