Guangzhou Tangzhen Trading Co., Ltd is a trading company headquartered in Guangzhou, with more than 10 years of experience in gift customization, packaging design and product sales, and has high satisfaction customers.

Guangzhou Tangzhen Trading Co., Ltd is a marketing and design company with offices in Guangzhou, Hong Kong and the United States. The name of the U.S. entity is CAS Technology (USA), Inc. CAS Technology owns several brand names, including 3DPhotocase.com and 3DBikecase.com. 3DPhotocase.com is an end-buyer consumer website, while 3DBikecase.com is a dealer website focused on the motorcycle market.


We have a strong product design and manufacturing team that creates many quality products related to 3D, such as phone cases, coasters, bookmarks, keyrings.


We have manufacturing plants in Guangzhou and Dongguan, China. The company has strong manufacturing capacity, with a number of high-grade 3D printers. By using the latest SLA 3D printing and 3D image raster printing technologies, we have created many product designs for our customers. We also implement a "just in time" manufacturing process so that our customers can enjoy minimal deliveries.


For any custom sales requests, please contact us at rlee@3dmktgift.com.