Company History

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Company HistoryTOP SEALING

1979

 

TENGLONG SEALING is established by Mr Xu Jifang, mainly manufacturing sealing and thermal insulation products.

1994

 

TENGLONG SEALING expands to more non-asbestos gland packings and PTFE Products.

1998

 

In 1998, Fiberglass Products is put into the market.

2000

 

Ceramic fiber products producing line comes into service.

2001

 

SUNPASS as the subsidiary company, established by MS. Echo Xu, specialized in the design and manufacturing of ISO tank container spare parts, extends to a new business field different from TENGLONG SEALING.

2002

 

TENGLONG Sealing is equipped with advanced Germany technology and equipment.

2004

 

TENGLONG is authorized by ISO organization and executed strictly the process and rules of ISO9001:2008

2008

 

ECHO INDUSTRY LIMITED is established to provide better exporting service.

2014

 

TENGLONG moved to a new 6000M2 factory with modern office and workshops.

SUNPASS Joins ITCO.

SUNPASS authorizes 1st agent in Southeast Asia.

2015

 

More braiding producing lines are added.

2016

 

SUNPASS Shanghai Branch is established.

SUNPASS authorizes 2rd agent in Europe.

2017

 

New producing line of graphite sheets is put into use.

The production line of PTFE-rubber sealing gaskets are enlarged. The advanced facility and the production, research and development ability enable us to customized high-tech sealing gaskets.

2018

 

TOP SEALING is established to provide a better service for customers in sealing and thermal insulation field.

2019

 

Another 6 sets of braiding production line, imported from Germany, go into operation.

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