Hi, the only thing I could find that might be of any help is a video on YouTube;
http://www.youtube.com/watch?v=krKEH5UK ... re=relatedRead the comments on that video and someone states some have security pins and some don't but there are no other details.
You can search yourself for another video on there. They use comb picks on the same lock and since comb picks are bypass tools I believe that subject matter is for the advanced section only.
And according to the manufacturing specs all I could find was this;
Features Specifications: Thick Type Polished Brass Padlock
High Security
High Anti-theft
High Level Manufacturer
I hope that helps somewhat.