Head Cabinet Door Hinges

These hinges are used on the cabinet doors in both heads and the forward shower. Many of them have corroded and a number have broken. They are proving challenging to source. 

They are 30mm by 30mm (1.18" x 1.18") with holes spaced 17mm ( 0.67") apart. 

These looks like they might fit the bill: GN 136-A4-30-30-C from elesa.com.