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PS_Bond: start
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PS_Bond: soldering
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PS_Bond: beginning_hammering
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PS_Bond: starting_1st_course
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PS_Bond: 1st_course_done
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PS_Bond: starting_2nd_side
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PS_Bond: 2nd_side_done
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PS_Bond: working_to_centre
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PS_Bond: hammering_centre
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PS_Bond: regulating
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PS_Bond: annealing_part_done
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PS_Bond: annealing_between_courses
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PS_Bond: next_notch_1st_course