Extruded vellum

Widely used in: heavy-duty sliding doors, architectural sliding windows, high-end roller shutters, and high-performance soundproof doors and windows.
Independently developed: extrusion molding process, small dimensional stability deviation, and smoother profile insertion.
Independently developed flexible non-woven fabric, excellent sealing and outstanding sound insulation: comprehensive sound insulation effect of 40dB. AAMA certified: double anti-aging additives, extending service life; improves door and window sealing performance, overcoming the limitations of ordinary weatherstripping such as poor sealing and shedding, and improving waterproof performance.
Air tightness test reports:
ETSQ: GB/T7-106-2008 Level 6
CF-4P: GB/T7-106-2008 Level 5
SP-4P: GB/T7-106-2008 Level 4
SP-3P: GB/T7-106-2008 Level 3