Asbestos was added as an common ingredient to Brake Pads post-WWI, as car speeds began to increase, because research showed that its properties allowed it to absorb the heat (which can reach 500 °F) while still providing the friction necessary to stop a vehicle. However, as the serious health-related hazards of asbestos eventually started to become apparent, other materials had to be found. Asbestos brake pads have largely been replaced by non-asbestos organic (NAO) materials in first world countries. Today, brake pad materials are classified into one of four principal categories, as follows:
Non-metallic materials - these are made from a combination of various synthetic substances bonded into a composite, principally in the form of cellulose, aramid, PAN, and sintered glass. They are gentle on rotors, but produce a fair amount of dust, thus having a short service life.
Semi-metallic materials - synthetics mixed with varying proportions of flaked metals. These are harder than non-metallic pads, more fade-resistant and longer lasting, but at the cost of increased wear to the rotor/drum which then must be replaced sooner. They also require more actuating force than non-metallic pads in order to generate braking torque.
Fully metallic materials - these pads are used only in racing vehicles, and are composed of sintered steel without any synthetic additives. They are very long-lasting, but require more force to slow a vehicle while wearing off the rotors faster. They also tend to be very loud.
Ceramic materials - Composed of clay and porcelain bonded to copper flakes and filaments, these are a good compromise between the durability of the metal pads, grip and fade resistance of the synthetic variety. Their principal drawback, however, is that unlike the previous three types, despite the presence of the copper (which has a high thermal conductivity), ceramic pads generally do not dissipate heat well, which can eventually cause the pads or other components of the braking system to warp.However, because the ceramic materials causes the braking sound to be elevated beyond that of human hearing, they are exceptionally quiet.
Auto Brake Pads,Car Pad Shims,Brake Pad Shims,Autozone Brake Pads LIXIN INDUSTRIAL & TRADE CO.,Limited , https://www.jmsparkplug.com
Poultry and livestock disease detection vehicle swine fever PCR quick inspection vehicle Ford V362 quick inspection vehicle layout unique and reasonable car purchase phone manager Liang
Ford V348 has a long axis and high roof, the length is 5.78 meters, and the number of passengers is 7 people. It is a special inspection vehicle that can be opened with a C certificate . Please contact the manufacturer for the price. 
Ford V362 inspection vehicle is one of the most popular models produced by our factory in the recent segment. It can produce oil inspection vehicles, fish disease inspection vehicles, and swine fever inspection vehicles. The price is reasonable and fully equipped.
Poultry and livestock disease detection vehicle swine fever PCR quick inspection vehicle Ford V362 quick inspection vehicle layout unique and reasonable car purchase phone manager Liang 
Poultry and livestock disease detection vehicle_swine fever PCR rapid inspection vehicle_Ford V362 rapid inspection vehicle has a unique layout and reasonable car purchase phone manager Liang
Poultry and livestock disease detection vehicle swine fever PCR rapid inspection vehicle Ford V362 rapid inspection vehicle has a unique and reasonable lifetime warranty. For products that exceed the warranty period, if they need to replace parts, only cost will be charged. If you need to buy accessories, you can contact the manufacturer directly, and we will dispatch the corresponding accessories in time. Our factory arranges senior engineers for on-site guidance to learn theoretical knowledge and practical operating experience. The company's service is to strictly implement the company's program documents and quality manuals, combined with the requirements of the market and users, and provide service guarantees. 
Standard configuration:
Left and right equipment storage cabinet system, physical and chemical work surface, sink system (induction faucet), test tube rack, waterproof and anti-static floor, ultraviolet disinfection lamp, multi-function ventilating fan, UPS intelligent power system (2KVA), external power system indoor lighting , Dirt bucket, refrigerator, temperature and humidity monitor, composite experimental seat, appearance mark (made according to customer requirements).
Poultry and livestock disease detection vehicle_swine fever PCR rapid inspection vehicle_Ford V362 rapid inspection vehicle has a unique layout and reasonable car purchase phone manager Liang
Poultry and livestock disease detection vehicle_swine fever PCR rapid inspection vehicle_Ford V362 rapid inspection vehicle has a unique and reasonable layout
Poultry and livestock disease detection vehicle_swine fever PCR rapid inspection vehicle_Ford V362 rapid inspection vehicle has a unique and reasonable layout. The "Jiangsu Province Crop Disease and Pest Forecast Management Measures" is introduced to improve the disease and insect epidemic monitoring system. Since 2012, a special fund of 1,200 has been arranged every year Ten thousand to 15 million yuan will be used for the construction of the county-level disease and insect epidemic monitoring network. According to the principle of "gathering points to form a network, filling in and filling, and updating", a "provincial monitoring and early warning center, and a county with disease and insect monitoring stations (fields)" , Key towns have a pest monitoring network with pest monitoring points. Pollution-free is an important sign of food safety, and agricultural product safety is a major issue related to the national economy and the people’s livelihood. The multifunctional inspection vehicle launched by Chengli can meet the different needs of chicken and duck meat, animals and plants, aquatic products, agricultural products, food, water quality, atmospheric environmental protection and other different needs.