Description
Heating, ventilation, and air conditioning (HVAC) systems are thermal management systems used to control the temperatures inside buildings and vehicles. The HVAC systems in buses work on a principle similar to that of other automotive HVAC systems but the required power for conditioning is higher than in other smaller vehicles.
Description
Air suspension system is a type of vehicle suspension that uses an air pump or compressor to pump air into the airbag (bellow). These bellows are made from reinforced rubber to allow air pressure to inflate them and thus raise the vehicle body from the axle. A suspension system in a vehicle enables connection between the vehicle body and the wheels and allows relative motion between them. The main components included in the suspension are a system of tires, springs, shock absorbers, and linkages.
Description
A bulldozer is a type of crawler with an attached blade that is used to dig or move large quantities of soil, sand, and other construction materials in construction sites. The blade is typically equipped on the rear end with a ripper, shaped as a claw, that helps in loosening densely compacted materials. 
Description
A bulldozer is a type of off-road vehicle which is equipped with a significant metal plate/blade. It is utilized in construction and conversion work in order to push large quantities of soil, sand, debris, or other such materials. Bulldozers equipped for warfare engineering roles are often tailored with armor in order to protect the driver from debris and others material, which enables bulldozers to be utilized in combat zones. It is a modification in the regular application bulldozer and is known as an armored bulldozer.
Description
Tonneau covers describe hard or soft cover used to protect unoccupied passenger seats in convertible or roadster, or the cargo bed in a pickup truck. Hard tonneau covers open by a hinging or folding mechanism while soft covers open by rolling up. The tonneau cover is used to conceal and or cover cargo. When the cover is pulled out, it keeps items out of the sun and provides extra security by keeping personal items out of sight.
Description
A supercar is a high-performance sports car, in the report, the mainly player are Porsche, Bentley, 
Ferrari, Aston Martin, Lamborghini, McLaren, Audi, BMW, Bugatti, Pagani.
Description
A safety sign is an information or instruction pertaining to safety and health in workplace or commercial space. It is conveyed by means of a signboard, a distinguishable color, an illuminated or an acoustic signage, a verbal communication, or a hand sign.

Safety Signs are crucial in any work environment. The primary importance of displaying Safety Signs is to prevent injury and ensure staff and visitors are well aware of the possible dangers and hazards ahead in certain situations and/or environments.
Description
Diaphragms are sealing agents, used as moveable membranes to prevent two or more components from leakage and friction. The flexible nature of this seal allows pressure effects to cross the barrier but not the material being contained.

Diaphragm are counted as the most versatile element across all the sealing needs; serving as reliable but flexible separating wall between two component spaces. It has a wide – application across industries like Fluid Handling, Power Generation, Aerospace, Chemical & Process Industry, Automotive Tier, Foods & Beverage that use pumps & compressors, actuators, water reservoirs, hydro – accumulators, valves, regulators and any other such industrial components as a part of their operations value chain.
Description
Tonneau covers describe hard or soft cover used to protect unoccupied passenger seats in convertible or roadster, or the cargo bed in a pickup truck. Hard tonneau covers open by a hinging or folding mechanism while soft covers open by rolling up. The tonneau cover is used to conceal and or cover cargo. When the cover is pulled out, it keeps items out of the sun and provides extra security by keeping personal items out of sight.
Description
A supercar is a high-performance sports car, in the report, the mainly player are Porsche, Bentley, 
Ferrari, Aston Martin, Lamborghini, McLaren, Audi, BMW, Bugatti, Pagani.