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Ningbo Sanhan Tools Manufacture Co., Ltd.
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Place of Origin: | Zhejiang, China (Mainland) |
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Material: Alloy-steel of High-Quality
1)38 CrMoAIA(JIS SACM645)
2)42CrMo(AISI 4140) Heat-treatment Nitriding treatment Electoplated hard-chorme finish high-frequency quenching Spray coating Bimetallic -alloy Vacuum quenching