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Hongte is a leading marketer of rigid fiberglass duct board in China. We are an enterprise highly praised by peer competitors in this field. pre-insulated panel is the main product of Hongte. It is diverse in variety. Ventech pre insulated panels must go through the following inspection process. They are surface defects tests, specification consistency tests, mechanical properties tests, functional realization tests, etc. It won't wrinkle easily. The formaldehyde-free anti-wrinkle finishing agent is used to ensure the flatness and dimensional stability after washing multiple times.
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