Yes. That star or asterisk bracketing the name...Do better traps also hurt more?
... means "masterwork", and masterwork weapons or trap components inflict DOUBLE damage.
There are several grades in between normal and masterwork (well-crafted, finely-crafted, superior, exceptional, etc) and the damage bonus is also graded, in steps of +20%.
EDIT: Also, the quality of the Mechanism that's used to build the trap influences the to-Hit roll, so it is worthwhile to have a dedicated highly-skilled Mechanic making the mechanisms.
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