March 1998

The application of the pipeline drilling machine is patent. The patent number is ZL 98211979.8

March 1998

Pipeline non-stop plugging device patent application, patent number ZL 982, 11978.X

September 1998

HT series pipeline continuous opening hole equipment, won the 1998 national new product certificate

May 2000

HT series pipeline non-stop opening and discharge equipment was awarded the two prize of Jiangxi science and technology progress in 199

January 2001

The project of "pipeline non-stop opening hole and sealing equipment" won the "95" excellent project award of technological innovation in Jiangxi Province

May 2002

PE pipeline open

Hole device patent, patent No. ZL 2224145

May 2002

PE pipeline occluder patent No. ZL 2224144.2

December 2002

HT300 pipeline continuous opening and closing equipment has won the certificate of Jiangxi hi tech product

2002

PE pipeline continuous plugging and opening equipment was awarded two OO two new product certificate of Jiangxi Province

February 2003

HT series pipeline non-stop opening hole equipment, won the brand-name products in Xinyu

March 2003

HTPE300, EXPE300

PE pipeline non-stop plugging and opening equipment, won the first prize of two OO, two new excellent products in Jiangxi Province

April 2003

PE pipeline plugging and sealing equipment PE300 won national key new product certificate

December 2003

Company "Jiangxi TEDA Changlin special equipment limited liability company

August 2005

Air bag patent application patent No. ZL 200520105041.3

June 2006

Our products are certified by ISO9001:2000 quality system

September 2008

The company passed the national quality

General Administration of supervision, inspection and quarantine, special equipment manufacturing license, valves B (6.4MPa), pipe fittings B2 (6.4MPa) Certificate No. TS2736007-2012

September 2012

The company passes the State Administration of quality supervision, inspection and quarantine, special equipment manufacturing license, valves A1 (2), A2 (1), B1, B2 and pipe fittings, B1 (2), B2 level certificate number TS2710W65-2016

January 2015

Applied for patent in January 28, 2015, "an automatic hydraulic control station with holes"

May 2015

In May 15, 2015, the "occupational health and safety management system certification" was obtained

In May 15, 2015, the "environmental management system certification" was obtained

August 2015

In August 10, 2015, the "quality management system certification" was obtained

September 2015

In September 25, 2015, we obtained the certificate of high and new technology enterprises

October 2015

In October 16, 2015, the credit rating certificate was obtained

December 2015

In December 25, 2015, the "pollutant discharge permit" was obtained