Difference between input services and inputs

in regard to cenvat credit rules 2004,how can v take benifit of cenvat credit of tax on inputs and input services ?

We can use cenvat credit at the time of payment of excise duty and service tax

can  cenvat credit of tax on  input services b used for excise duty as well??????????????

See link

https://www.simpletaxindia.net/2012/09/input-service-meaning-cenvat-credit.html

Input means on which excise duty is charged

and Input services on wch ST is charged

While Payment of  service tax or while payment of excise duty ....we can take credit of excise of input and ST of input services used in making excisable goods