Material: Steel Specification: Max, 10000mm O.D: 100-1500mm Surface roughness: 1.6 Precision(mm): 0.1 Flaw detecion: SEP 1921 Grain size: ASTM E-112 Coaxial tolerance(mm): 0.08 Forging ratio: Min,3 Certificate: ISO 9001:2000 Standard: ASTM, EN, DIN, JIS, etc.
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