Luggage rules for *G on UA-TG

Searched both UA and *A forums but couldn't really find the answers (and .bomb seems to make me even more confused :confused:)

I have an upcoming SFO to TPE trip on UA and then TG.　How much can each one of my luggages weight? 70lbs or 50lbs if I check in @ UA?
p.s. I used .bomb and it showed all legs to be 70lbs * 3 even the intra-asia one on JL? Is it true?

Thanks :)