
China 70mm Series Window Profiles From Lumei Brand. Six-Cavity Thermal Insulation: Features a six-cavity structure for superior thermal insulation and energy saving. Multi-Color Customization: Available in multi-color options to suit various design preferences. High Performance Ratings: Achieves 4-level air tightness, 3-level water tightness, 4-level wind pressure resistance, and 8-level thermal insulation. Flexible Design Options: Suitable for in-swinging casement, tilt-turn, and fixed windows with connection at any angle. Advanced Drainage System: Independent drainage cavity design improves performance and reduces water accumulation. Versatile Glass Compatibility: Can be equipped with three-layer or double-layer hollow glass at large intervals. Comprehensive OEM/ODM Service: Offers full, minor, and flexible customization from samples or designs. Global Compatibility: Compatible with all domestic and foreign accessories and hardware.