For the past 40 years, Georgia Hydraulic International has been devoted to engineering and producing the highest quality stan ... dard and custom hydraulic cylinders and components. GHI is headquartered in Atlanta, Georgia. In our 260,000square foot facility, we engineer and manufacture welded cylinders, tie-rod cylinders, pneumatic pistons, valves and all accessories to NFPA specifications including the HH series, LA Series, and the LH Series. GHI is ISO 9001:2000 certified in engineering and manufacturing for the fluid power industry. read more