you mean you want to bind the 2 GE ports as Eth-Trunk in two different switch?
if so, you should create CSS or stack for the two switches, then you can think they are one logistic switch, then you can bind 2 GE ports of two different switch since they are one logistic switch.
otherwise, you also can create m-lag which is like Eth-Trunk for the 2 GE ports of two diffwerent switch.