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Which parts of medela electric breast pump are easy to be damaged?

It only took a month to break down, and suddenly there was no suction. When I went to official website, the accessories were broken. Does Mabao have spare parts? Jinan can be traded on the spot. The accessories are the white corner under the speaker and the yellow stuff dripping milk. Besides, electric breast pumps are really expensive. Accessories have to be replaced once a month, and the life of the motor is less than 300 hours. . .