JW HYDRAULIC LIMITED is a subsidiary of JW GROUP, a leading manufacturer of custom hydraulic cylinders in China. The cylinders we manufactured are widely used in marine, offshore, water conservancy, heavy-duty machinery, vehicle, metallurgy, machine tools, and so on. The products and services we mainly supply are: Hydraulic cylinders. Hydraulic and pneumatic actuators. Machined components (barrels, piston rods, head caps, end caps, pistons, etc.) Honed tubes & chrome plated rods. Design and repair work.