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#7_qctools
#Whatis_7_qctools?
#7basicqualitycontroltools
#checksheet
#cause_and_effect_diagram
#fishbonediagram
#Ishikawadiagram
#flowchart
#paretodiagram
#histogram
#scatterdiagram
#controlchart
#tallysheet
#symbol_used_in_flowchart.
#qualityperfectindia.