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  • Stainless steel single‑action spring hinge with two flat rectangular leaves, internal spring, self‑closingTechnical drawing of single‑action spring hinge indicating overall height H, width W, thickness T and template screw positions

    Architectural Stainless Steel Single‑Action Spring Hinge | Flat‑Leaf Pair | Spring‑Return | SS304/201 | Satin/Polished/AB/AC/PVD

    • Type: single‑action spring hinge (one‑way spring return)
    • Sizes (H × W × T) range:
      • 3.5″ × 3.5″ × 3.0 mm
      • 4.0″ × 3.0″ × 2.0/3.0 mm
      • 4.0″ × 3.5″ × 3.0 mm
      • 4.0″ × 4.0″ × 2.5/2.7/3.0/3.3 mm
      • 4.5″ × 4.0″ × 3.0/3.4 mm
      • 4.5″ × 4.5″ × 3.0/3.4 mm
    • Material: stainless steel (SS304/201)
    • Design: dual flat leaves; internal spring mechanism; precision knuckle/pin; template screw layout
    • Finishes: Satin Stainless (SSS), Polished Stainless (PSS), Antique Brass (AB), Antique Copper (AC), PVD
    • Applications: room doors and wooden gate doors; residential/light commercial
    • Highlights: automatic one‑way closing, minimalistic look, quiet operation, long service life, easy alignment
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