Bucking Unit manufacturer / supplier in China, offering Gsy219/50 Customizable Hydrostatic Test Unit – 6000-12000mm Pipe Length, ≤ 1.0% Diameter Tolerance, OEM Service, Gsy219/50 Energy-Efficient Hydro Unit – 50MPa Testing, Hlp46 Hydraulic Oil, 0.4-0.6MPa Compressed Air, Gsy219/50 Steel Pipe Pressure Test Unit – Φ 60-168mm Od, 6-12m Length, 0.3MPa Filtered Water Supply and so on.