Surface roughness: 0.4~0.8
Straightness: 0.2/1000
Roundness: 0.07

1. ISO9001-2000
2. Professional manufacturer for o. E. M. &o. D. M. Hydraulic cylinders
Mainly used for vehicle for agriculture, construction, mining, forestry, marine, truck and loader etc.
3. Possess two factotries in yishui, shandong & chengdu, sichuan in order to meet the large amount customer's requirements.

Our main products include: Telescopic cylinders, fdj & hsg cylinders etc.
Tube: Cold draw ceaseless steel, high tensile, precision honed
Pistion: High grade ductile iron, precision machined with grooves or metal seals(o-rings, u-cups or cast iron rings)
Pistion rod: Hard chrome-plated.