Non-combustible And Non-sparking

2. Lubrication Apply a suitable lubricant to the rollers and tracks periodically. This will reduce friction and ensure smooth operation. Avoid using sticky lubricants that can attract dirt and grime.

The surface of aluminum alloy is polished and polished by oxidation. The window sash frame is large and can be inlaid with a large area of glass, so that the indoor light is bright enough, and the contrast between the interior and the exterior of the facade is enhanced, and the living room is more rich. Aluminum alloy itself is easy to extrusion, the cross-section of the profile size is accurate, the machining accuracy is high, so in the decoration, many owners choose to adopt aluminum alloy doors and windows.