Hello Again,
I opened an Incident to SAP also and Marc replied my question immediately.
Thanks to him firstly.
The soution is to extract SLClient program to a folde with blelow script. (either using run or from command prompt)
D:\SAPCDS\SAPGUI\SAPSetupSLC04_0-10012580.exe /extract="D:\SAPCDS\SAPGUI\SLC"
After this command runs you can see setup folder under SLC.
Use NwSapSetupAdmin.exe to import new product package to Installation server.
After Importing Installation Server products can be seen like below.
Hope this helps to someone also.
Regards,
Yuksel AKCINAR