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+Forged from special boron-steel alloy +Deeper heat-treated and hardness +More wear material
+Forged from special boron-steel alloy
+Deeper heat-treated and hardness
+More wear material
隐藏域元素占位
+Forged from special boron-steel alloy +Deeper heat-treated and hardness +More wear material
+Forged from special boron-steel alloy
+Deeper heat-treated and hardness
+More wear material
隐藏域元素占位
+Forged from special boron-steel alloy +Deeper heat-treated and hardness +More wear material
+Forged from special boron-steel alloy
+Deeper heat-treated and hardness
+More wear material
隐藏域元素占位
+Forged from special boron-steel alloy +Deeper heat-treated and hardness +More wear material
+Forged from special boron-steel alloy
+Deeper heat-treated and hardness
+More wear material
隐藏域元素占位
+Forged from special boron-steel alloy +Deeper heat-treated and hardness +More wear material
+Forged from special boron-steel alloy
+Deeper heat-treated and hardness
+More wear material
隐藏域元素占位
+Forged from special boron-steel alloy +Deeper heat-treated and hardness +More wear material
+Forged from special boron-steel alloy
+Deeper heat-treated and hardness
+More wear material
隐藏域元素占位