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"Magnesium cement dragon" bo magnesium duct with a small density, not rusting, corrosion resistance, high strength, good heat preservation, low cost, can be used as the central air conditioning, ventilation pipes in the basement design materials, has been rolled out across the country, and is moving towards the world. Oman pavilion, south Korean pavilion, such as: Shanghai world expo African pavilion, Shanghai metro line 11, line 9, the Shanghai train station, Shanghai hongqiao transportation hub, the republic of yemen, dubai, France ARFLEX company and so on.

"Magnesium solid dragon" brand glass magnesium composite duct is divided into the following kinds:

Type a, smoke duct

Smoke exhaust duct in accordance with the requirements for the fire to fire A level, it has the advantage of light quality, construction is convenient, the advantages of high cost performance.

Second, the type insulation duct

1, fireproof grade A duct insulation type, type fireproof grade A thermal duct is compounded with organic cotton and glass magnesium tablet of composite products. It has excellent fireproof performance, and has certain heat preservation ability.

2, fire B duct insulation, fire protection class B duct insulation is to use organic light materials and glass magnesium tablet disposable composite and composite material, has excellent thermal insulation performance and flame retardant ability in general.

Three, tin outsourcing duct, tin outsourcing duct is to package in the hoisting good iron duct outside a layer of glass magnesium tablets, to improve fire anti-corrosion performance. General iron duct need fire 1 h and 2 h, with the corresponding thickness of coated glass magnesium board as the fire protection layer.