The proof is
on the workbench.

MachiningRods, pistons & glandsNew chromed rods, pistons and threaded glands with fresh seals. CylindersEarthmoving cylindersA batch of yellow-iron cylinders in for a full rebuild. Gears & splinesBevel gears: before & afterShattered differential gears reproduced as new. CylindersBuilt from scratchOriginal cylinder alongside two units we fabricated new. CylindersCylinder fabricationBarrels, rods, pistons and glands ready for assembly. Gears & splinesInternal splineSplined coupling machined to match the original. MachiningHub & stub axleFabricated hub assembly, painted and ready to fit. CylindersMeasured to the micronTube, rod stock, glands and seals checked before assembly. MachiningFinal drive housingHeavy final drive repair: bearing seats and seals. MachiningMachined glandsThreaded glands and pistons straight off the lathe. Gears & splinesSpline couplingNew splined coupling seated on its shaft. Gears & splinesHex driveInternal hex drive cut into solid bar. ValvesValve cartridgesRelief and check-valve cartridges stripped for overhaul. ValvesRelief valve strip-downEvery spring, poppet and seat inspected in order. ValvesValve re-sealCartridges, springs and new O-rings laid out for assembly. ValvesRebuilt cartridgesTwo cartridges re-sealed and ready to go back in service. WorkshopTurning sectionLathe and milling machine side by side. WorkshopCuttingBandsaw for bar and tube stock. WorkshopLathe & mill-drillPrecision turning and milling for small parts. WorkshopCentre latheLong-bed lathe for rods and shafts. WorkshopClean bayEvery component is washed before inspection. WorkshopHydraulic test benchRebuilt cylinders are pressure-tested before delivery. WorkshopAutomatic bandsawRepeatable cuts on heavy bar stock.