What this means
The IEEE assigned the MA-L block C06D1A to Tianjin Henxinhuifeng Technology Co.,Ltd.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting C0:6D:1A, it is Tianjin Henxinhuifeng Technology Co.,Ltd. hardware.