How to Identify Universal Key Blade Type?

To purchase the universal blades how do I identify them? Because on the application I read example: SIP22, when I have to buy it I read numbers 1# 2# 3#, etc.
universal blade
xhorse app
Universal key blades are based on GTL numbers
(e.g. Sip22 = #67)
gtl number

How to Select Universal Key Blade?
Key supplier should have a list showing each number references to key type.
key list
Or order blades by key numbers.
key blade by number

Universal Key Blade List:
key list
kye list
key list
key list
key list
key list
Key Cutting Machines to Cut Universal Blades:
Dolphin XP005L
Condor XC-Mini Plus