About us

Shenzhen Jiawencheng Technology Co.,Ltd established in 2014, which is a professional technology company focused on design, R&D, production , and sales. After several years of rapid development, Jiawencheng has specialized in dash cam , action camera and hunting camera .

From 2020, we set up a separate business department specializing in selling of blockchain miners, including Antminer ,Whatsminer,Avalon miner, Innosilicon miner, Aisen Miner, Cheetah miner and accessories for miner device. We always focus on providing customers with high quality products, competitive prices and comprehensive services. Please feel free to contact us for details if you are interested in any of our products. 

Romanta still keep on moving forward, and bring more better and reliable products to our customers. With professional R&D department , we also can provide ODM &OEM .Our principle is to deliver high-quality products and best support to you, and good after-sales service.

Concentrating on image and video products, we are committed to serving professional clients and try to be clients' excellent consultant of products and services. We sincerely hope to cooperate with you and develop together.