Established in Ningbo, China in 1990, SAIVS began as a manufacturer and exporter of investment casting, sand casting, die-casting and CNC machining parts(eg. Cylinder ends, valve bodies, screw cylinder, auto parts, marine parts etc.). In 2002, hydraulic tools research department was settled and company developed its first lines of hydraulic tools and equipment. Today SAIVS is reckoned as one of the most preferred experienced manufacturers and exporters of hydraulic tools and equipment in the industrial market.