Dh gate wholesale

I have read through threads regarding DH Gate. I am currently watching and intending to buy a lot (electronic item from DH Gate). However, I dont know where I should begin with like what sort of questions should I ask and how to bargain the price? I am trying to give it a go for the first time, so any helps will truly appreciated from me.

Just say i had another quote for such and such price for the same amount of merchandise.Thanks for your time.Usually 9 out of 10 times they will email you back with a better price.