After creating LSMW in the development system you will need this LSMW in the respective systems i.e. Quality system and Production system.
You have 2 options available:
Step 1: You export the LSMW created in the development system.
Step 2: You import the LSMW in the quality system or the production system
Create a transport request and transport it through STMS (SAP Transport Management system) path.
In this document you will be guided for both options mentioned above.