平等互利

mutual benefit / to share profits equitably

surname Ping

flat / level / equal / to tie (make the same score) / to draw (score) / calm / peaceful / abbr. for 平聲|平声[ping2 sheng1]

equal / equality

class / rank / grade / equal to / same as / to wait for / to await / et cetera / and so on / et al. (and other authors) / after / as soon as / once

mutual

mutually beneficial

sharp / favorable / advantage / benefit / profit / interest / to do good to / to benefit