What are the characteristics of the caravan?

Definition of caravan: Referring to the definition of GB/T 3730.1-2001 Traveling Vehicle, Semi-trailer and Trailer, the history of the caravan was originally derived from the caravan. Caravan has three major categories of nine models. Self-propelled A-type, B-type, C-type, trailer A-type, B-type, C-type, D-type, mobile villa A-type and B-type. Self-propelled A-type caravan is the most luxurious and comfortable in the caravan, mostly used for long-distance traveling, which can be referred to as a bus in layman's terms. The length of 8 to 15 meters, for example: Jinlong self-propelled B-type caravan can meet the basic needs of life and entertainment, compact and flexible, the interior furniture is mostly board furniture, very strong, suitable for short trips, and business negotiations business reception and other purposes, commonly known as the van, generally 4 to 6 meters long. Self-propelled C-type caravan between A, B, complete facilities, with a sliding cabin can extend the interior space, represented by the day, the general cross-country caravan is this type, Zhao Benshan's car is self-propelled C-type caravan. This kind of caravan is generally 5~9 meters.

Trailer type A caravan that travel trailer, the United States speaks of the traditional caravan is this type, most of the center axle trailer, the front with a passenger car towing. Trailer type B caravan in the United States is called a fifth wheel trailer, in the country is called travel semi-trailer, by the tractor trailer in front of the trailer, such as pickup trucks, this caravan has a characteristic, in the towing cattle will form a step above, used for placing beds, etc., the formation of the bedroom space. Trailer type C caravan can be expanded at both ends to form a collapsible tent caravan, which shrinks and becomes smaller when moving, and unfolds when parked in the campground, the space can become very large, belonging to the seasonal caravan, which is usually parked for a long period of time. Trailer D type caravan commonly known as camelback caravan, mobile villa A type and B type in the stable living time and seasonal difference.