Think about you have a balloon full of air. Should you launch the end, air rushes out with the high-force inside the balloon for the decrease-tension exterior. Style and Number of Fittings: Fittings for example elbows, tees, and transitions introduce further resistance to airflow. The design challenge is to minimize https://puflexibleducting57891.illawiki.com/1558769/pu_ducting_surabaya_no_further_a_mystery