Engineering-Grade Bolt Sphere Blank for Construction Grid Bolt Spheres with Engineering Type

Engineering-Grade Bolt Sphere Blank for Construction Grid Bolt Spheres with Engineering Type. Wide Size Range: Diameters from 80mm to 400mm suitable for various bolt ball specifications. Customizable Material: Available in 45# steel, Q355B, or other grades upon request. Hot Forging Process: Ensures uniform internal structure and excellent mechanical properties. Quality Control: Strict material analysis, dimensional inspection, and optional ultrasonic testing. Surface Condition: As-forged surface with scale removed, ready for further machining. 1 Year Warranty: Comprehensive warranty coverage for the forged steel ball blanks. Flexible Customization: Dimensions and material grades tailored to customer requirements. Professional Manufacturer: Established in 2002 with advanced workshops and international certifications.