pulling vs haulage

pulling and haulage both are nouns.

Word	Noun	Adjective	Verb	Adverb
pulling	Yes	No	No	No
haulage	Yes	No	No	No

As nouns, haulage is a hyponym of pulling; that is, haulage is a word with a more specific, narrower meaning than pulling:

pulling: the act of pulling; applying force to move something toward or with you
haulage: the act of drawing or hauling something

Other hyponyms of pulling include drag, draw, haul, jerk, tug, draft, draught, drawing, deracination, excision, extirpation, pluck, traction.

pulling (noun)	haulage (noun)
the act of pulling; applying force to move something toward or with you	the act of drawing or hauling something