They look like Satins.
These are not an officially recognized breed but are essentially Silkies with hard feathering. They cannot be called Silkies though because they do not have silkied feathers. Depending on how many generations they have been working on the Satins, they may still be recessive for silkied feathers. The only way to know is to breed them with a Silkie and see what happens. If they carry the recessive gene for silkied feathers, then breeding them to a regular Silkie will give you 50% silkied feathered offspring and 50% hard feathered offspring.
While a Satin can never be 100% Silkie, they can be well over 90% Silkie.