點問supplier CBM??

如果出20呎櫃寄船可以放幾多件貨, 40呎櫃寄船又可以放幾多貨，先決定下張單order 幾多貨。
Please note next order being placed subject to your immediate return full-load quantity information per a single 20' and 40' container both.
Thanks & regards,

You may write as this:

Please advise the total quantity of :

a) 1 x 20' container and the CBM.

b) 1 x 40' container and the CBM.

We will consider the order quantity after receiving the above details.

Thanks!