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American Bureau of Shipping

The certificate is the American Bureau of Shipping (ABS) factory accreditation certificate, issued by the American Bureau of Shipping. Certificate application: Ingot - Carbon steel and carbon - manganese steel, the maximum tonnage 200 tons; Low alloy steel material, the maximum tonnage 160 tons.Forging(Contains crank arm forgings)-- Carbon steel and carbon manganese steel, the maximum tonnage 151 tons; Alloy steel material,the maximum tonnage 121 tons.