Our Mission
What we are working towards.
- Create a blue sky for children.
- Like the knight protects the king, protect our environment and natural resources.
- Make efforts for clean and sustainable energy.
Frequently Asked Questions
Is Deferry a manufacturer or a trading company?
Deferry is a manufacturer. Nanning Deferry Environment Protection and Energy Conservation Co., Ltd designs and produces exhaust after-treatment products, and a separate company, Nanning Deferry Import & Export Trading Co., Ltd, handles international sales.
Which quality certificates does Deferry hold?
Deferry obtained ISO 9001 and ISO 14001 certificates in 2015 and runs an eight-step quality control procedure covering incoming inspection through to the quality management system.
Which markets does Deferry supply?
Deferry supplies domestic manufacturers of converters and combustion engines in China, and has developed markets in Europe, America and the Middle East.
Tell Us the Size the Standard and the Volume
Send the dimensions, cell density and emission standard you need, or the OE number you are matching. We will come back with specification and price.