Who we are: Great K2 Industry Co.,Ltd, located in Shanghai China, is a sign material manufacturer and supplier, specializing large format digital printing media. We focus on the product research development sales of with strict quality controlling procedures, great R&D innovation ...

OSIGN is an professional Group whom are working in AD materials indusry. Over 10 years manufacture experience, We can supply customers not only good products with best price on value, but also the serivce or solution add-value. know how to supporting each their business, we give a whole for our ...