UL brackets 1.UL Bracket is used for Frameless Glass Door with High Strength Aluminum material . 2.It is with Sandblast Finished .3. Different standard: MBK-70UL/MBK-180UL/MBK-280UL/MBK-350UL Hot Tags: ul bracket for framelss glass door suppliers, factory, manufacturers China, made in China, electric lock China