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The core competence of Hongte is developing and manufacturing quality rigid fiberglass duct board. We are one of the major suppliers in this industry in China. phenolic insulation board manufacturers is the main product of Hongte. It is diverse in variety. Ventech hvac duct board suppliers has passed many tests. These tests include anti-fatigue tests, dimensional stability tests, chemical resistance tests, and mechanical tests. Possessing these advantages, it has a vast application prospect.
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