Geeetech

Hi all.
I have two question .

1. what hot end block is used in A10 printer? , I want use silicone socks for this hot end , but I down know , what type is used ,
dimension my hot end block is 20mm x 23mm x9mm

2. where is possible download 3D model of Ventilation Enclosure with hot end , fan etc ..
is there possible download it in Step ir Iges or any other format..??
here is example : https://cdn.thingiverse.com/renders/f9/ ... atured.jpg

So far I have found only people making their own by molding silicon to 3D prited form: https://www.thingiverse.com/thing:3569700