... High quality with best price It meets EU standard Aluminum hvac duct partsHVAC duct system-duct is using advanced high temperature ... rolling production.We offer all different duct accessories using for HVAC duct systems: flange corners,damper regulators,damper hardware,link bracket ... bushing,gasket tape.Features:1.Item:20801 2.Usage:For HVAC duct systems.3.High quality with best price.4.It ...