Its on the website , because i can read portuguese (
) , i'll translate, to the letter :
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Chrome finish. Only the contact area is used for the final finish (probably a mirror finish).
The base is made of electrolitic copper, it has internally 19 pins also made of electrolitic copper, with 16mm lenght and 3mm diameter. The "lid" is in copper alloy (brass) and the inlets for the 5/16 inch hoses (+/-) are molded in copper , and plug in type, no need for clamps.
The final weight is 100 grams and can carry 18ml of liquid. The height is 23mm , 40mm with the top bolt.
The clamp uses the 3 ends on each side and the material has a an equal resistance of the socket plastic. The pressure ajustment is manual (top bolt), with no use of tools.
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I think it's it gives a clear image of the interior. A Hoot type block, but with a different casing, and probably a middle wall "separator" to keep all the pins in full use.