Type: Forged Grade: Gr.1, Gr.2, Gr.3, Gr.4, Gr.5, Gr.7, Gr.9, Gr.11, Gr.12 Sizes: Φ150-600mm Thick 35-150mm Out Dia. 200-3000mm Inner Dia. 100-900mm Wall Thickness 40-400mm Height 40-700mm