清洗节气门阀体 90%
检查进去系统是否漏气 10%
https://qc.dianpusou.com/tag/%e4%b8%ba%e4%bb%80%e4%b9%88%e6%80%a0%e9%80%9f%e6%b2%b9%e8%80%97%e9%ab%98
清洗节气门阀体 90%
检查进去系统是否漏气 10%
https://qc.dianpusou.com/tag/%e4%b8%ba%e4%bb%80%e4%b9%88%e6%80%a0%e9%80%9f%e6%b2%b9%e8%80%97%e9%ab%98