Balls from 12" to 60 Inches. In all grades of Carbon Steels, Stainless Steel, Duplex, Super Duplex, Inconel and special materials like Monel, Hastelloy & Titanium. Stock of Ball in different sizes and standard materials Advanced Technical Solutions for surface treatment through nickel-plating, nickel silicon or surface hardening coating for "Metal-to-Metal" seals. Inconel Weld Overlay of Balls Complete Kit of Seats & Ball Solution Available Surface Treatment by Nickel Plating Hard Coating of surfaces by Stellite, Tungsten or Chrome Carbide. Lapping of finished balls, obtaining a seal surfacewith a roughness level up to 0, 1 and an extremely low shape error. Close attention paid to Roughness, Sphericity and General Tolerances