1995-2008

TIAN LONG VALVE FACTORY, the predecessor name of our factory, was established in year 1995. 

2008-2016

In year 2008, SHUANGLIN established. Within the following 8 years, we mainly produce the goods for other Chinese the trading company and also supply to domestic market directly.

2017

Start from year 2017, we started to export the goods directly to overseas company. Sales amount reach RMB 10 million at this year which is a small step.

2019

Sales amount reach RMB 20 million.

2022

At the beginning of 2012, our factory moved to a new place and the sales amount reach RMB 70 million which means more than USD  10 million.