2023
Participated in the formulation of the national standard GB/T 24187-2023 Cold-Drawn Precision Single-Layer Welded Steel Tubes
2022
The company's surface treatment workshop was recognized as a Changzhou Intelligent Workshop
2017
Obtained certification for the GB/T 29490-2013 Intellectual Property Management System
2017
July
The "High-Performance Evaporator for Refrigerators" was rated as a Jiangsu Provincial High-Tech Product
2014
The "High-Performance Evaporator for Refrigerators" was rated as a Jiangsu Provincial High-Tech Product
2012
September
The company's R&D center was recognized as a "Changzhou Enterprise Technology Center"
2012
July
The new product "High-Corrosion-Resistant Galvanized Tube" achieved a performance of 1,000 hours in the neutral salt spray test
2011
August
Awarded the title of "Changzhou Engineering Technology Research Center for Refrigeration Welded Steel Tubes"
2009
June
Participated in the formulation of the national standard GB/T 24187-2009 Cold-Drawn Precision Single-Layer Welded Copper Tubes
2007
May
Participated in the formulation of the industry standard YB/T 4164-2007 Double-Layer Brazed Copper Tubes
2000
September
Entered the home appliance refrigeration parts industry and began supplying directly to manufacturers
1998
January
Entered the compressor pipeline industry
1996
October
Officially put single-layer welded tubes into production
1996
September
Precision double-layer welded tubes were successfully adopted by the refrigerator industry
1996
June
The precision double-layer welded tube production line was officially put into operation
1995
May
The company was established in Changzhou
2023
Participated in the formulation of the national standard GB/T 24187-2023 Cold-Drawn Precision Single-Layer Welded Steel Tubes
2022
The company's surface treatment workshop was recognized as a Changzhou Intelligent Workshop
2017
Obtained certification for the GB/T 29490-2013 Intellectual Property Management System
2017
July
The "High-Performance Evaporator for Refrigerators" was rated as a Jiangsu Provincial High-Tech Product
2014
The "High-Performance Evaporator for Refrigerators" was rated as a Jiangsu Provincial High-Tech Product
2012
September
The company's R&D center was recognized as a "Changzhou Enterprise Technology Center"
2012
July
The new product "High-Corrosion-Resistant Galvanized Tube" achieved a performance of 1,000 hours in the neutral salt spray test
2011
August
Awarded the title of "Changzhou Engineering Technology Research Center for Refrigeration Welded Steel Tubes"
2009
June
Participated in the formulation of the national standard GB/T 24187-2009 Cold-Drawn Precision Single-Layer Welded Copper Tubes
2007
May
Participated in the formulation of the industry standard YB/T 4164-2007 Double-Layer Brazed Copper Tubes
2000
September
Entered the home appliance refrigeration parts industry and began supplying directly to manufacturers
1998
January
Entered the compressor pipeline industry
1996
October
Officially put single-layer welded tubes into production
1996
September
Precision double-layer welded tubes were successfully adopted by the refrigerator industry
1996
June
The precision double-layer welded tube production line was officially put into operation
1995
May
The company was established in Changzhou
