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Greencelbach, a wholly foreign owned enterprise, chose to use our VK vacuum circuit breaker in 2008. Up to now, our VK vacuum circuit breaker has served greencelbach for 11 years, during which the quality, safety and reliability are excellent.But recently we received an urgent after-sales service from gretzebach company, saying that the distribution room had water seepage, which caused the whole distribution room to be in a relatively humid environment for a long time, and we were very worried that there would be problems in the distribution room, which would affect the production.After understanding our company, then in the past, help each other the first time for electrical equipment comprehensive dehumidification process, the high voltage distribution cabinet and vacuum circuit breaker breaker for dehumidification, cleaning maintenance, when confirmation has in addition to moisture, insulation resistance to the specified value, just try to send, after judgment without exception, our vitamin k vacuum circuit breaker and put into normal operation.Gretzbach company to our service and product quality are very praise and recognition, and then purchased our latest vk12-12p fixed seal pole type vacuum circuit breaker, zbach boss said with a smile: keep the spare, such as the old switch retired, with a new switch.