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- Type: double‑action spring hinge (bi‑directional self‑closing)
- Sizes: 3″, 4″, 5″, 6″
- Thickness options: 1.5 mm / 2.0 mm
- Material: stainless steel (SS304/201)
- Design: dual spring barrels + center plate; precision pins/knuckles; template screw layout
- Finishes: Satin Stainless (SSS), Polished Stainless (PSS), Antique Brass (AB), Antique Copper (AC), PVD
- Applications: café/restaurant swing doors, pantry doors, room doors; residential/light commercial
- Highlights: opens both ways and returns to center, quiet operation, stable alignment, durable stainless build
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- Type: Flag hinge with lift‑off/removable design
- Sizes (H × W × T): 4.0″ × 3.0″ × 2.5 mm; 4.0″ × 3.5″ × 3.0 mm; 5.0″ × 3.5″ × 3.0 mm; 5.0″ × 4.0″ × 3.0 mm
- Material: Stainless steel (SS304/201)
- Design: square twin leaves; precision knuckle/pin; standardized template hole pattern
- Finishes: Satin Stainless (SSS), Polished Stainless (PSS), Antique Brass (AB), Antique Copper (AC), PVD
- Applications: room doors, wooden gate doors; residential/light commercial
- Key features: quick removal, stable support area, quiet operation, long service life
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- Type: single‑action spring flag hinge (one‑way spring return)
- Nominal size (H × W × T): ~4.0″ × 3.5″ × 3.0 mm
- Material: stainless steel (SS304/201)
- Design: window‑frame jamb leaf + straight three‑hole door leaf; internal spring; precision knuckle/pin; template screw pattern
- Finishes: Satin Stainless (SSS), Polished Stainless (PSS), Antique Brass (AB), Antique Copper (AC), PVD
- Applications: room doors, wooden gate doors; residential/light commercial
- Highlights: automatic one‑way closing, broad frame support, quiet operation, repeatable installation, long service life
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- Type: single‑action spring hinge (one‑way spring return, tension‑adjustable)
- Size range (H × W × T):
- 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″ × 3.4 mm
- 4.5″ × 4.5″ × 3.4 mm
- Material: stainless steel (SS304/201)
- Design: dual flat leaves; spring‑loaded knuckle with top tension slot; 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: adjustable self‑closing, minimalistic look, quiet operation, durable stainless build, repeatable installation
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- 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
