Transfer of goods between Plants

I have 2 manufacturing plants- Plant 1 and Plant 2.

I have to transfer the excisable material from Plant 1 to Plant 2. In this case I have to transfer the excise duty paid from Plant 1 to Plant 2 also.

The STO is without delivery. We are using movement type 351.

I have created STO and did goods issue using 351.

How to transfer excise duty? What is the step?