Durable Bolt Sphere Blank for Durable Bolt Sphere Manufacturing with Durable Type

Durable Bolt Sphere Blank for Durable Bolt Sphere Manufacturing with Durable Type. High-Quality Hot Forging: Hot forging ensures uniform internal structure and excellent mechanical properties. Wide Diameter Range: Available in diameters from 80mm to 400mm for various bolt ball specifications. Customizable Materials: Options include 45# steel, Q355B, or other grades tailored to customer needs. Strict Quality Control: Includes material analysis, dimensional inspection, and optional ultrasonic testing. Professional Manufacturer: Established in 2002 with Grade II contracting qualifications and ISO standards.