My name is Sasho Stojanovski from Makaus Trade Australia. I met Rihan Chen at the Pro-Pack China in Shanghai last June where I enquired about some of your vacuum packing machines. Could you please quote me on your DZ(Q)-500/2F and DZ(Q)400/2F. Also I'd like to know if I can use any of this vacuum packers for packing products containing liquid Regards Sasho Stojanovski