640MM AIR HORN ZINC ALLOY TRUMPET CHORME,leng :640mm/740mm,165MM/230MM/300MM,230mm/300mm/360MM CCC ,ISO9001 CERTIFICAT 640MM AIR HORN WITH LINGHT Rated Voltage(V):12V/24V Working Current(A):≤4 Frequency(HZ):1800-3550 Sound Level(db):115±10db Length(mm): 640MM/740MM1)Material:Zinc-Alloy2)Used for Car,Truck3)MOQ:600 pcs4)Sample Delivery Time:10days5)Products Delivery Time:30 days(up to the quantity ...