商務車用管總成

大巴空調系統為大巴艙內提供冷/暖氣。管路不僅粗大，而且長度較長。多數采用銅管材料或鋁管材料。

大巴用發動機多為柴油機，管路承載壓力較高并承受振動較大，適配的管不僅材料較厚，并對焊接提出較高要求。

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.