Match 2 cells and total another
 

I have a worksheet with 12 columns. I have part # in Column F, Part
Description in Column D and Quantity in Column B. I would like to find
all of the part # that match the part description and total the
quantity. I may have the same parts and description in several rows. I
would also like to combine the rows so I only have 1 row for each part
with only the total qty,

B
D F
QTY Part Description Part #
6