Does anybody konw about MF MDF and MFC?

I guess you are talking about MDF? If so, mdf stands for medium density fiber board.There is hdf and ldf -high density and low density.The higher the density, the heavier and stronger it is. MDF can sometimes be used as a cheap substitute for wood products. It is made of compressed paper and wood fibers held together with glue. Never to be used in wet or damp locations.