Photograph Shear Marking machine

Crystal covered to protect the surface membrane to draw a picture of the signs off, the convenience of folding.

Photo composite crystal, and is zoned in the crystal to the middle part of film, so that will not be repeated folding fracture, and ultimately the formation of crystal album.

Scratch length of 45cm.

video: http://v.youku.com/v_show/id_XNDg1NTM3NzQw.html?f=18656839