bulma can build armor, weapons, dragon radars and transportation units.
Dr. Briefs can create anything that is possible to make exept for dragon balls and things like that.
Mrs.Briefs repairs your armor.1000 zeni to repair instantly.
a Gravitron that Can go up to 300 times gravity. [500 zeni/day]
Capsule Dragon Radar allows you to locate the location of some Dragon Balls. [400 zeni/day]
Earth Armor. [depends on type/day]
Capsule Dragon ball finders crew: hire a crew to search for dballs for you [5000 zeni/day].