DuctSizer 对比 Kwanjai Next 的使用情况和统计数据

The Duct Sizer is a productivity app developed by Nopparat Katkhaw. The app is a simplest and quickest ductulator. Perform quick calculation and accurate results. Use the finger slide for quick calculations. Shows equivalent round and rectangular duct sizes. Compatible with IP and SI units. We would very much like your feedback! Pleas contacts Facebook page: https://www.facebook.com/UP.Energy4You