KRC2 connectors

Hello.
What is the type of connectors X20 / X30 / X21 / X31 / X19 for kuka krc2 cables ?
Which produces these connectors for kuka? phoenix contact ?
I want to buy spare connectors without cables.
Exists chinese close for these connectors ?

X19?

Also what type are the connectors of servo drives ksd1-16 / ksd1-48 ?

Where can i buy all these connectors in europe with good prices?