Your Optical Filter Partner


 optolong ISO90012008 certification

Optolong is ISO 9001:2008 certified company.
All the process about management, product design, manufacture, delivery, customer support are within the standard operation. We are preparing the certification of ISO 9001: 2015. It is the only standard based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement.
We would keep a high standard to work for our client.

 OPTOLONG Trademark china

OPTOLONG® Trademark Registration Certificate
(Issued by Administration of Industry and Commerce in China)

Optolong trademark in US

OPTOLONG® Trademark Registration Certificate
(Issued by Patent and Trademark Office in US)