Ask for a sky high rate until they counter offer you. You have nothing to lose by asking high. If you ask low, then you will regret and feel bad about yourself. Is that right?
This is refinery/plant 价钱. It looks you do not have much industrial experience ... they will star paying you at 42-45/H. , K- a. ?! ^ JNow there are not many permanent jobs; if they hire you as a contractor, usually will pay you around 3500$/bi-weekly (40hr/week) without any benefits.