E355/ST-52 With low Diameter to Thickness Ratio (up to 3) for Automobile & General Engineering application. Meta Engitech is an esteemed company that is pretty much engaged in giving a widespread variety of Hollow Piston Rods. We manufacture these rods for any type of Application. These are being mainly used in Railway, Auto Parts, Guide Rod, Linear Motion Bearing Guide, etc. The raw material used in the manufacturing process is procured from the most reliable sources of the industry. It’s a higher Yield Strength, with good weld-ability.