Yingde Hongte Air Conditioning Equipment Co., Ltd. is a reliable manufacturer offering the right fiberglass duct board for a wide range of applications around the world. phenolic insulation board manufacturers is the main product of Hongte. It is diverse in variety. The design of Ventech phenolic foam insulation board is exquisite. The design process adopts the most advanced design software, such as CAD software. The surface of the product is smooth and flat. Singeing technique is a kind of technique which enables yarns or fabrics to pass through a flame or rub on a hot metal surface to remove surface hair
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