Thank you MIW ! yes it should be what you call "biscottini"
but Moscatelli doesn't use the same :

He uses 'biscottini' by Purte1 one I guess, and these one are not the same !
I will email Moscatelli, but do you know where I can find this model ?,
or where does the pic come from ? from a Tawain SRV Forum ?