Topmass Security Technology (Hongkong) Co., Ltd. is registered in Hongkong. We have a factory in shenzhen, Chian, called Shenzhen Seiko Star Corporation, a professional and comprehensive enterprise specialized in R&D, manufacture and marketing CCTV lenses for over 10 years. Our factory covers area of 5000 square meters and has about 200 employees. We mainly supply "0.7 Mega-pixel" lens.Our products include about 40 kinds of lenses ranging from varifocal lenses, build-in lenses, monofocal lenses and Infra-red lenses.

Professional
As a professional manufacturer of cctv lens, we carry out "all process", ranging from design, model, metal machine, optic cold machine and assembly. The aims of our professional manufacturer are as following:
1.Make sure superior quality
2.Improve technology to meet market
3.Low cost to make more profit for our clients
In order to make sure quality, some of material was imported from Japan and Germany, especially drives and oil.

Experience
Our executives and technical staff have over10 years experience in distributing high quality optics for industrial applications and research laboratories around the world. We provide the finest quality products as well as in-depth technical support.

Technology
We have R&D team of 20 experienced engineer who is both trained and qualified on CCTV system for many years. All products are processed with strict quality control guidelines and are guaranteed to be of the highest quality.

Service
We have always put the customer first in our business and strive to help our customers develop successful applications. We firmly believe that our success depends on our customer's success and to this end our professional and experienced staff will always provide complete pre-sales and post-sales support.

Culture
"We are family" is creed of our company. Our target is continuous innovation, challenging ourselves, meticulously manufacturing every piece of products, and building up famous brands in the world.