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P_1型、P_(50)型棚车是我厂厂修棚车的主要车型,也是我国铁路棚车中占数量较多的车型。多年来的运用经验证明,此种棚车具有一定的优点,但在检修中也发现一些问
P_1, P_ (50) box car factory box factory is the main car repair, but also China’s railway car in a larger number of cars. Years of experience has shown that this type of box has some advantages, but also found some problems in the maintenance