Components
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Components
name: KHLPU brand: JIANGDUN Material: Guide pin material: Gcr15 Hardness: 58HRC~ guide bush material: Gcr15 (polyurethane) Hardness: 58HRC~
name: QPMF brand: JIANGDUN Material: Guide pin material: S45C Hardness: 55HRC~(induction harding) guide bush material: cast iron graphite (embedded)  
name: QPMW brand: JIANGDUN Material: Guide pin material: S45C Hardness: 55HRC~(induction harding) guide bush material: brass graphite (embedded) &n