A lifting mechanism for a head member of {TAIL ~ a pipe bender} includes {HEAD ~ a connecting block} and an oil cylinder 
A lifting mechanism for a head member of { TAIL ~ a pipe bender } includes { HEAD ~ a connecting block } and an oil cylinder
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH