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cropped-logo-1.png
  • HOME
  • PRODUCT
    • Auto Duct Production Line
      • Auto Duct Line II
      • Auto Duct Line III
      • Auto Duct Line IV
      • Auto Duct Line Ⅴ
      • U Shape Auto Duct Line V
    • Rectangular Duct Making Machine
      • Lock Forming Machine
      • CNC Plasma Cutting Machine
      • Electrical Shearing Machine
      • Pneumatic TDF Folding Machine
      • TDF Flange Forming Machine
      • Enhanced Manual Folding Machine
      • Pneumatic Folding Machine
      • Pneumatic Corner Mounting Machine
      • Variable Hydraulic Angle Cutting Machine
      • Hydraulic Seam Closing Machine
    • Spiral Duct Forming Machine
      • Angle Steel Round Rolling Machine
      • Spiral Duct Forming Machine
      • Elextric Elbow Making Machine
    • Round Duct Making Machine
      • Electrical Rolling Machine
      • Round Duct Grooving Machine
  • ABOUT US
  • FAQ
  • CONTACT US
  • NEWS

NEWS

HVAC Duct Static Pressure
News

Duct Pressure in HVAC: Static Pressure, Measurement, Problems & Solutions

08/06/2026
News

HVAC Duct Sizing Chart: CFM to Duct Size Calculator & Guide

08/03/2026
HVAC Duct Gauge Selection Guide
News

HVAC Duct Gauge Selection Guide: How to Choose the Right Sheet Metal Thickness

07/28/2026
spiral duct forming machine
News

Spiral Duct Machine Buying Guide: 10 Factors to Choose the Right Model

07/28/2026
News

Galvanized Steel vs. Stainless Steel for HVAC Ductwork: Which One Should You Actually Use?

07/24/2026
News

Equal Friction vs. Static Regain: Which Duct Sizing Method Wins?

07/22/2026
News

HVAC Duct Design: Sizing Methods, Pressure Loss, Noise Control & Fabrication

07/20/2026
HVAC Duct Drawings
News

How to Read HVAC Duct Drawings | Symbols, Sizes & Fittings

07/16/2026
Laminar vs Turbulent Flow
News

Laminar Flow vs Turbulent Flow in HVAC Duct Systems: A Practical Guide

07/14/2026
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