Business-class

Hello
I would like to ride in the business-class with the full-length lie-flat bed, but I am not sure
if I take the correct train. So I would like to know if the train G12 departure at 08:00 from
Shanghai Hongqiao to Beijing South offer this business-class? I have read that only the CRH380AL
as a sixteen coach train this business-class offers, is that correct an can I buy tickets for this calss on
travelchinagudie.com?

Thanks for help.