With more than 25.000.000 units sold – the proof of their strong reliability all over the world - RZD PROTECTED by Borgosesia Rings are the black colour spinning rings famous for their excellent quality/price ratio and their availability for any brand spinning frames...

Steelhawk represents the latest spinning ring development, launched in 2011 and based on 65 years collaborationship between Prosino and the most demanding OEM's and mills worldwide...

Successfully produced by Prosino since 1946, steel conical rings represent the core of Prosino’s tradition and competence; they are worldwide recognized and used for decades by the most prestigious OEM’s like Zinser, Cognetex and Gaudin...

Prosino’s range of sintered metal rings, with over than 5 million pieced sold worldwide, includes different material solutions in order to suit to the most difficult working conditions...