| Parameter Category | English Term | Specification |
|---|---|---|
| Basic Product Parameters | Basic Product Parameters | — |
| Insulation strip | Insulation strip | 14.8mm + 20mm |
| Profile thickness | Profile thickness | 1.4-3.0mm |
| Frame visible surface | Frame visible surface | Frame: 48mm Upper rail: 68mm Lower rail: 60mm |
| Visible surface of mullion | Visible surface of mullion | Indoor: 30mm Outdoor: 66.5mm |
| Sash visible surface | Sash visible surface | Left/right sash: 28mm Top/bottom sash: 35mm |
| Glass specifications | Glass specifications | 5mm clear glass + 15Ar + 5mm clear glass |
| Accessories brand | Accessories brand | Juhe System Independently Developed |
| Window screen scheme and mesh type | Window screen scheme and mesh type | High-transparency mesh, high-definition stainless steel mesh |
| Available colors | Available colors | Light-sensitive skin black, Hepburn black grey, Starry Sky Grey, Starbar Coffee |
| Usage scenario | Usage scenario | Balcony, bedroom |
| Notes | Notes | Electric and manual operation options available |
Follow these three steps:
Dry push – Gently slide the sash; it should feel smooth, without jamming or noise.
Stop test – Release the sash at any position; it should stay still and not auto‑slide to one side.
Seal check – Close the window and hold a lit lighter near the gap; no flame flicker means good airtightness.
Also, pour a small amount of water into the lower track to verify that the drainage holes work properly.
The differences come from four key aspects:
Profile – Virgin aluminum vs. recycled aluminum; 1.4mm vs. 2.0mm wall thickness
Thermal break – PA66 nylon vs. PVC plastic
Glass – Basic clear glass vs. tempered Low‑E insulated glass
Hardware & craftsmanship – Branded pulleys / multi‑point locks vs. unbranded parts; glue‑injected corners vs. simple screwing
Choosing the cheapest option often leads to sliding jams, air leakage, water seepage, and even safety hazards after only one year. Always choose a brand that offers a warranty (≥5 years) and provides official test reports.
