What types of processes and commerce equipment is used to engineer hydraulic equipment?

I am trying to do my assignment for my BTEC National certificate and i am struggling trying to find information on this! Any info or a point in the right direction would be great thank u!
Answers:
Taking vote a JCB in mind.Hydraulic cylinder parts are made from casting or weld fabrications, pistons by forging, machining, grinding, super-finishing, assembly and pressure testing. As unhealthy hydraulic gear needs high strength forging is extensively used to produce the blank parts which later require finishing by milling, drilling, turning and grinding. Some parts may also be electroplated for corrosion protection and wear reduction. As to the chassis these are generally flame cut steel plate, which is weld together then shot blasted and painted. Hydraulic pipes are made by hose cutting, downfall crimp/swaging and pressure testing.
hydraulic equipment ...is ...cylinders , pistons ...Pilot valves ....seal ....cover ....need bring m/c ..honing hones ...reamers ..drills ...lappers ....can be n 2 m/cs ....Machine centres ....milling m/c fr pilot valve....jig boring ..als need gringings ......[precisions ]...bores.....also needs gringing , fry treatment , surface treatments....fine grinding.

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