Ma'anshan fire doors

 Ma'anshan fire doors --- Shenzhen Industrial Co., Ltd. proficient fire doors complete documents, priced direct sales, installation of train Shenzhen fire doors, steel fire doors Shenzhen, Shenzhen glass fire doors, fire doors Class Shenzhen, the Shenzhen B fire doors , Mobile: 13728894133 Mobile: 13556866654 Contact: Miss first wide web site: http: //www.sztx88.com Website: http: //a13556866654.b2b168.com Free Phone: 4008884513 E-mail: 2540559416@qq.com Address: B common barrier means burning wood fire door price Bao'an District of Shenzhen City Industrial Park, Maanshan Huangmabu timber fire doors are: spraying, dipping, cooking, vacuum, vacuum pressure method. Spray and immersion method usually applied no further planing of wood appearance, as well as the disposal of a thickness of less than 10mm thin flame does not apply to the production of wood fire doors. Vacuum and vacuum pressure method retardant excellent results despite, but because of expensive equipment, fire doors production company in the province is also no use. Most of the companies in our Province fire doors cooking method chosen retardant disposal. I think that the choice of cooking method retardant disposal should note the following: 1, to be treated wood has to be dry not wet also treated wood moisture content is affecting the quality of a wood fire retardant heavy wooden fire door manufacturers To factor. Because of the dry wood into the pool after the flame retardant is usually easier to absorb the liquid, and the amount of timber to absorb liquid flame retardant has a direct impact on the quality of the wood, its uptake and oxygen index and flame retardant wood proportional to the depth Contact. Wood absorb more liquid flame retardant, fire-retardant features wood better, the higher the oxygen index, flame deeper depth. But many companies believe that, if they had the wood is wet even when the flame retardant liquid, so wood with high moisture content low point there is not much contact, to be fire-retardant wood usually without drying disposal, as well as individual companies The wet sawn lumber were just retardant treatment. As everyone knows precisely the moisture content of the wood will affect the quality of the flame retardant to form an unstable flame retardant quality wood. According to experiments, at the same flame conditions, the moisture content of less than 15% of the wood than the high moisture content of 40% of wood can improve more than five oxygen index, flame depth progress than 3mm. Ma'anshan fire doors