| Message: | Coleman is from a hydraulic equipment company in Ecuador. He has been engaged in procurement for 3 years and has been quite smooth. In the second half of this year, the hydraulic winches they have sold out for 8 months was complained by customer that they were slipping under load and were prone to shake. After checking, it was found that the hydraulic cartridge counterbalance valve in the system was abnormal. The original manufacturer of the hydraulic cartridge counterbalance valve said that under such working conditions, the hydraulic counterbalance valves would need to be replaced every 8 months. The boss was not satisfied with this short service life and asked Coleman to find a hydraulic counterbalance valve manufacturer who can guarantee a longer service life. Coleman was surprised that all other hydraulic counterbalance valve manufacturers he contacted said that the original manufacturer was correct.
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