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Material | Hardness | Diameter | Outer diameter | Level | Certification |
X46Cr13(stainless steel) | HRC52-55 | 0.8mm-28mm | <1800mm | 1 | CE/IOS |
20CrMnTi(Alloy Steel) | HRC60-62 | 1.0mm-28mm | <1800mm | 1 | CE/IOS |


















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