WENZHOU TOPTIME TRADE CO.,LTD. Home Company Info Product List Index Product Info Air horn is a device designed to create an loud noise. Air horn is usually composed of a pressurized air source coupled to a horn through a valve which allows the device to be turned on and off. Air horns have been installed on large trucks, fire trucks, and some other cars for many years. It is used on trains as warning device, and on ships as signalling device, too. Asian-Manufacturer.com - China Supplier - Product Catalog - Biz Info - Advertising - Feedback Your use of this website is subject to, and constitutes acknowledgement and acceptance of, our Terms & Conditions. Copyright @ 2007 Asian-Manufacturer.com Technology Co., Ltd. All rights reserved.