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| Type | Door and Window Fastener, Long Expansion Anchor | Model | Flat Head / Countersunk Head |
| Params | Diameter: 8mm, 10mm; Length: 72mm-202mm; Material: Steel + Zinc coating | Material | Carbon Steel + Plastic/Metal Sleeve |
| Applicable Industry | Window Frame Installation, Curtain Wall, Wooden Beams | ||
Extra-long expansion zone for hollow bricks, prevents frame distortion during tightening, high fire resistance (for metal sleeve versions).

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