| http://www.w3.org/ns/prov#value | - FIG. 3A is a plan view illustrating a state in which a large portion of a poor quality PCB unit 11' included in a PCB strip 10 is removed from the PCB strip 10 to form a cutting opening having a shape as shown in FIG. 2B. That is, after a poor quality PCB unit portion 11b' is cut out, a cutting opening 16' is left in the poor quality PCB unit 11'.
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