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The RIVERLAKE JHA Series represents a breakthrough in portable hydraulic lifting technology, combining lightweight construction with industrial-grade durability. Manufactured from high-strength aluminum alloy with a sandblasted and anodized outer surface, the JHA series delivers exceptional corrosion resistance and extended service life, making it ideal for demanding environments where reliability and portability are critical. • Lightweight yet Robust Construction The aluminum alloy body, treated with sandblasting and anodizing, significantly reduces weight while enhancing resistance to corrosion and wear, effectively prolonging the equipment’s operational lifespan. • External Pressure Relief Valve Equipped with an external pressure relief valve, the JHA series prevents equipment overload, ensuring safe operation and protecting both the jack and the user from excessive pressure conditions. • Precision-Machined Contact Surfaces The front and rear surfaces are precision-machined, allowing the jack to be used in confined spaces where traditional jacks cannot fit, without compromising lifting performance.