The products includes five series: crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment.The 5 Whys can be used individually or as a part of the fishbone (also known as the cause and effect or Ishikawa) diagram. The fishbone diagram helps you explore all potential or real causes that result in a single defect or failure. Once all inputs are established on the fishboneyou can use the 5 Whys technique to drill down to the root causes..
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