Progress & Innovate to become better every day Tian Yi Precision company was founded in June 2004 and is located in Yixing at the Tai Lake which is part of the Jiangsu Province of China. By combining an advanced manufacturing facility with advanced technology and quality controls in place, we are able to produce consistently high-quality castings and cylinders in high volume at a competitive price. We have the capability to expand value added services to meet our customer&＃039;s growing needs. Tian Yi Precision produces a range of hydraulic cylinders and castings. For the castings the company uses state of the art casting techniques and is able to produce at CT3-5 and surface roughness Ra3.2μm。For the hydraulic cylinder production foreign advanced sealing package, high quality carbon steel and alloy steel for cylinders, high frequency quenching and tempering material for pistons, and surface plating with hard chromium, working with piston of fine tolerance nodular cast iron material and surface copperize disposal technique, insure the hydraulic cylinder to have lone running life. Cylinder arm, cylinder head and front connection adopt precision casting making the aspects more elegancy.