How to install TS-K399 9-hole self-fix picture frame hanger on frame backs? a way to make automatic picture frame production line for large size picture frames

To hanger large size picture frames which can't make hanger on mouldings , TAISHENG FRAMING SUPPLIES has TS-K399 9-hole self-fix hanger to meet the needs . 9 tooth hole strongly to catch picture frame MDF backs, easy handle heavy one !

Of course ,TAISHENG make a machine TS-J43-K399 automatic  to work with it . 

Helps you easy make automatic picture frame production line . Any new worker can get 48-58pcs hanger /min. Here is pic and video as below: