About Us

Development Path

2000

DEF establishment, seal sales and technical services

2003

Professional equipment for seal design and production

2004

Obtained ISO9001 quality system certification

2005

DEF trademark registration successful

2008

Enterprises that achieved employee satisfaction from 2008 to 2010

2009

Obtained TUV and SGS certification in 2009;Received the National Innovation Fund Award;Obtained three sealing technology invention patents in 2009

2010

Received the Guangdong Provincial Private Science and Technology Enterprise Award

2017

The enterprise has continuously passed the national high-tech certification

2018

Obtained a total of 21 sealing invention design patents

2020

We are not responsible for our youth