品牌:Flexfab品名:地面通风管 Ground Support Ventilation DuctingSIZEI.D X LENGTHPART NUMBER12 X 961210-001912X1201210-002012X2401210-002112X3001210-001414X961210-001714X1201210-000614X2401210-000714X3001210-0008Construction: Polyurethane foam insulation between two plies of heavy duty urethane coated nylon fabric with a sewn on abrasion resistant scuff strip.Zippered cuff at each end with velcro flap for minimum air leakage.Characteristics: Heavy duty,polyurethane foam insulated ducting with a sewn on Vin-O-Fab scuff strip. Scuff strip reduces wear caused by dragging duct across rough surfaces. Zippered cuffs available to permit attachments of additional sections to form long duct assemblies. Flexfab ground support ducting is resistant to breakdown and powdering of insulation. Lightweight for ease of handling.OUTSIDE DIAMETER: (When Rolled)16 Width:20(for 12duct); 27(for14duct)BTUH/Hr./Ft.Length/F:1.09(for 12duct) ; 1.28(for 14duct)Temperature Range: -40~121(C)