TDC (Transverse Duct Connector) system: a separate flange install onto the ductwork.TDC flange-- Size: 20 mm / 30 mm / 40 mm; 25 mm / 35 mm-- Thickness: 0.7 mm ~ 1.2 mm (18~24Gauge)-- Available in zin ...
Octopus Metal Co.,Ltd
Main Products: Galvanized steel, HVAC Duct, metal processing machine, Cable tray... More