清管器因在管线中被卡住而名声不佳，结果，许多年来只进行少数的清管，随之而来的是许多公司付出费用维修和替换他们被腐蚀的管线，为改进管道的效率和避免腐蚀进行清管，现在已成为必然。一些管线并没设计成能作清管的管线，有时在特殊的管线中选错清管器，也增加了清管器卡 The poor reputation of pigs stuck in pipelines has led to the fact that for a number of years only a small number of pigs have been pigmented, with the attendant cost of repairs and replacement by many companies of their corroded pipelines, in order to improve the efficiency of the pipelines And to avoid corrosion of the pig, it has become inevitable. Some pipelines are not designed as pipelines for pipelines, sometimes the wrong pipelines are selected for special pipelines, and the pigcage card is also added