*Material: made from PVC (gray), good insulation and heat-resisting up to 85℃ *Struction: up of duct bottom and lid, with two out-holes designs at the bottom. *Size of PVC Trunk Closed type and opened type: Height???Width: 1) 20???15, 20???20, 20???25 2) 30???15, 30???20, 30???25, 30???30, 30???35, 30???40, 30???50 3) 35???25, 35???30, 35???35, 35???40 4) 40???25, 40???30, 40???40, 40???50 5) 45???45 6) 50???20, 50???25, 50???30, 50???35, 50???40, 50???45, 50???50, 50???55, 50???60, 50???80, 50???100 7) 60???25, 60???35, 60???45, 60???50, 60???55, 60???60, 60???100 8) 80???35, 80???45, 80???50, 80???55, 80???60, 80???80, 80???100 9) 100???80, 10???100 *White installation trunk: Height???Width: 1)10???15, 10???20, 10???25 2)15???15, 15???20, 15???25, 15???35 3)20???30, 20???35, 20???50 4)25???40 5)30???50, 30???60, 30???80, 30???100 6)50???80, 50???100 7)80???100, 100???100 *Packing: 2M/ pcs or 1M/ pcs
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