Tips for level 548 Candy Crush Saga
First you need a sideways stripe to get the nut down onto the conveyor. Then make anothe sideways stripe, or a stripe/wrap combo and drop it to the bottom ready to use.. When the nut is on the next to bottom row fire off the stripe to let it out of the bottom. If you don't time it right it will go back to the top again.
You can use combos to move the nut down faster and get more points.