Giant set Chest workout in under 30 minutes

Had little time to train today and got a great chest workout in under 30 minutes. I did 5 exercises non stop and increased weight each round. Did 4 giant sets of 5 exercises for 8 reps each. Then finished with a dropset of each exercise for 3 nonstop sets of 8 reps. Here is what I did:
Incline Hammer Strength press (changing grips each round) 90 lbs, 140 lbs, 180 lbs, 230 lbs
Chest Fly machine 130 lbs, 160 lbs, 190 lbs, 210 lbsFlat dumbbell press 70 lbs, 80 lbs, 85 lbs, 90 lbs
Dumbbell pullovers 80 lbs, 85 lbs, 90 lbs, 95 lbs
Under grip cable raises 22,5 kg, 27.5 kg, 27.5 kg, 27.5 kg
Did a drop set non stop of all exercise 8 reps each
Incline Hammer Strength Press 270 lbs,  180 lbs, 90 lbs.
chest fly machine 210 lbs, 190 lbs, 170 lbs
Flat Dumbbell press 80 lbs, 70 lbs, 60 lbs.
dumbbell pullovers 100 lbs, 90 lbs 70 lbs
Under grip cable raises 27.5 kg, 22.5 kg, 17. 5 kg