Q: there are two fundamental types of memory foam: high density and low density and both of them have different properties.
A: There are two fundamental types of memory foam: high density and low density and both of them have different properties.

Q: eu & schengen nationals (plus andorra):
A: EU & Schengen Nationals (plus Andorra):

Q: the relationship between the average particle size and the green density as well as the compressive strength of compacts is shown in fig. 5.31 for a const ant pressure.
A: The relationship between the average particle size and the green density as well as the compressive strength of compacts is shown in Fig. 5.31 for a const ant pressure.

Q: wdi.dll device can't work/no sound: actually, in most cases device problem is because of .sys files.
A:
wdi.dll device can't work/No sound: Actually, in most cases device problem is because of .sys files.