Круглый Тип подключения воздуховодов

Round Type Wiring Duct,Arc Chutes Floor duct: We are professional manufaturer,we can make mould for any size. Material: High impact, rigid, self-extinguish P.V.C,550°c FlameRetardant,2500V Insulation. combustion-proof . Service temperature: 85oC Color: Grey (white, milk, brown, dark brown and other colors available) Backed with high quality double sided tape for permanent stick. Good for floor wiring to faciliate trolly pass and to avoid trip. Sizes: NO.WW1HH1ITEM NO.outer widthinner widthouter heightinner height1K-RTD-220864mmmmmmmm2K-RTD-3301186mmmmmmmm3K-RTD-440169.57mmmmmmmm4K-RTD-55020118mmmmmmmm5K-RTD-66030139mmmmmmmm6K-RTD-770401510mmmmmmmm7K-RTD-990451915mmmmmmmm8K-RTD-120120702521mmmmmmmm The sizes are increasing. Schematic diagram: