汉译英：因为货物不够，所以我们少订一些FRC-04。如果有什么问题，请您告诉我，我再修改。

Because the freight is not enough, so we set a small number of FRC-04. If you have any questions, please tell me, I would change.

The quantity of the FRC-04 we ordered is less than expected, because of the lack of it. Please contact with me if you have any questions, and I will modify the order again.

Because of the goods is not enough, so we ordered some less FRC - 04. If you have any problems, please tell me, and I will be modified.

We ordered less FRC-04 than the plan for a lack of supply.If there are someting problem,please tell me.I will modify it aggin.