0086- 534-2730845/827/771


Contact Us

  • 0086-0534-2730845/827/771
  • 0086-0534-2730191
  • No.6,Grad Group,Tianqu Industrial Park,Dezhou City,Shandong Province,China.
Development history

Grad Group Histroy(1993-2016)

—————— The way stretched endless ahead, We will seek from head to foot.

  It was founded in 1993, formerly named Qinghe Ventilating Equipment machinery mill that produced central air conditioning terminal product and FRP pasting product by hand.

    In 1997,It had renamed Shandong Detong Industry Co.,ltd.,and produced the first one 100tons FRP tank.

    In1998,Grad Group passed the enterprises and product quality double certificates, and gained"the National Large and Medium Enterprise", at the same time the company moved out.

    In 2000,Expanding the area of 80000 square meters,signing the agent cooperative agreement with American Owens Corning,and introducing the advanced compound material technology.

    In 2003,the output of SMC product for our company was about 4000tons. It is No.1 in china.

Dezhou Air conditioning FRP Trade Association had established in this year,and Grad Group was elected chairman unit by unanimous vote.

    In 2004, Shandong Grad·Chung hsin Air Conditioning Co.,Ltd. established joint venture with Taiwan Chung Hsin Electric & Machinery Mfg. Corp. Ltd. and introduced central air conditioning chiller manufacturing technology.

    In 2005,Grad Group moved into new factory-No.6,Grad Road,Tianqu Industrial park,covering 349333 square meters, and the total investment reached RMB 320 million.

    In the same year Grad Group produced FRP pipe with 2.2mX12m for Guangdong Maoming Petrification Project,the diameter was the biggest one.

   In 2006,designated civil air defence project protective equipment manufacturer by National Civil Air Defence Office.

   The FRP pipe product gained "Shandong Famous Brand Product".

   FRP pipe gained "China Famous Brand";Air conditioning products were awarded "Shandong Famous Brand";"GRAD" trademark was granted "Shandong Famous Trademark"by Shandong Administration Bureau for Industry and Commerce

"Shandong FRP Compound Material Application Engineering Technology Research Centerof Grad Group was approved the sole research center for compound material of shandong.

    In 2007,passed the final review of Machinery Manufacturing Safety Quality Standardization National Class-B Enterprise,Grad Group was the first enterprise to passed "Machinery Manufacturing Safety Quality Standardization National Class-B Enterprise"

    Axial fan and cooling tower gained"Shandong Famous Brand"again.

    Fan won Energy Conservation Product Certificate.

Introducing America advanced frequency conversion fan wall technology on the 210 thousand air volume combined air conditioning unit.It was exported into Philippines and was highly appraised by SUNPOWER.

In 2008,we had gained the National Mechanical and Electrical Equipment Installation class-A qualification and Purification Equipment Installation class-B Qualification.

Water cooling screw central air conditioning unit got "Energy Conservation Product Certificate"

Closed cooling tower used for National Olympic Sports Center successfully.

Producing a 12 meter long FRP winding tank with capacity about 1000 tons in Liaoning North Jinhua Polyurtehane Co.,Ltd.

    In 2009,our trademark was recognized for "China Famous Trademark"

    Cooling tower got "Water Conservation Certificate"

    Applying for 40 patents

    Establishing a new factory in Inner Mongolia for 3 months and finishing the "Lead Wuli Jimuren Water into Tongliao Project" with contract of  RMB50 million .

    Grad Group began to establish the second phrase construction to enlarge the industry,improve and optimize the structure of product and enhance the Comprehensive competitiveness

Grad Group Real Estate Development Co.,Ltd. found in 2009.

In 2010,fan wall combination air conditioning unit passed national authoritative organization of scientific and technological achievements identification.This technology filled the blank in China.,reached the international advanced level and gained Ministry of Science and Technology Torch Project.

In 2011,Composite material company and wind power company established.

In 2012,Grad Group gained China patent start enterprise.The first combined AC with 42 0000M3/h air volume had produced successfully.

It begin to plan GRAD industrial park.

Ventilation products gained Saving energy certificate.

Beijing subway station 10 used GRAD cooling tower.

In 2013,The centrifugal water chiller had produced successfully.

Holding Grad Group 20th anniversary celebration meeting.

Complete the south-north water diversion FRP pipe project with RMB 80000000.

In 2014,Grad Group Industrial Park phase 1 begin to produce for composite material company.Until now,there are more than 113 kinds of patent.

Grad Group established "love fund committee" .

In 2015,The central air conditioner testing center passed CNAS certificate.