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Won the "specialized and special new" small giant enterprise

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

Invention of "sand plastic self insulation building profile" technology

Won the Geneva International Gold Award for invention

Sandwood industrialization technology of successful development

Sponge paddy field technology successfully developed

"National sponge City Innovation Research Center" listed

"Sand art relief" products were successfully developed

"Breathing" flowerpot products were successfully developed

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

State Key Laboratory of silica sand resources utilization established

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

Won the second prize of Beijing Science and Technology Progress Award

"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,。

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

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

Renchuang technology company developed into Renchuang technology group

Great Wall foundry company was transformed into Beijing Renchuang technology company

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

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

High temperature resistant coated sand" invented

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

Successfully researched the first generation of coated sand

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

Get to know the sand