| Highlight: | Zhafir Injection Screw Barrel,Injection Screw Barrel 30mm,barrel in injection moulding 30mm |
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| Item | Details |
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| Material | KTL-ST20 Double Alloy (Fe-based) |
| Main Alloy Composition | Inner alloy: Fe, Ni, Cr, WC, C, B |
| Structure | Double alloy structure (base material + inner alloy layer) |
| Hardness | Base: HRC 26–28 Inner layer: HRC 58–60 |
| Alloy Layer Thickness | 1–2 mm (each side) |
| Key Features |
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