QINHUANGDAO, HEBEI, CHINA, January 9, 2026 /EINPresswire.com/ -- As cities grow and building standards evolve, energy ...
Air tightness max. test pressure: 4 (600 Pa), water tightness: 8A (450 Pa), wind load resistance: B5 (2000 Pa); acoustic performance Rw: (C; Ctr) = 35 (-2;-4) dB / 40 (-2;-4) dB, depending on glazing ...
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