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Through years of devotion in this field, Hongte occupies a leading role in the developing and manufacturing of phenolic foam insulation board. fiberglass duct board is the main product of Hongte. It is diverse in variety. Ventech phenolic foam insulation board has been seriously tested. Its properties such as strength, ductility, and toughness are all verified by these tests. With the advantage of good cost performance, the product can be extensively applied in various fields.
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