These miners have surprisingly exact same design and exact same technical specifications as the Dragonmint altcoin miners.  
https://bitcointalk.org/index.php?topic=3345156.0

Innosilicon equals Halong Mining.

Ref.,
in some car brands and models, including the VW Up that I have,
VW Up, Seat Mii, Skoda Citigo. Three different car brands,
but this is the exact same vehicle.

Different brand name, but the product is same.