商务车用管总成

大巴空调系统为大巴舱内提供冷/暖气。管路不仅粗大，而且长度较长。多数采用铜管材料或铝管材料。

大巴用发动机多为柴油机，管路承载压力较高并承受振动较大，适配的管不仅材料较厚，并对焊接提出较高要求。

Commercial Vehicle Pipe ASM

Bus air-condition system provides cool / warm air for bus compartment. This kind of pipe is thick and long that mostly made of copper pipe or aluminium pipe.

Most bus engine is diesel engine. This kind of pipe is exposed to higher pressure and greater vibration, so it requires thicker material and higher quality for welding.