Product anti-theft performance is strong, strong, decorative, anti-theft and fire prevention, a dual-use door, with steel anti-theft security door as the basic core. All products are made of high quality materials, fire integrity performance high insulation performance outstanding, suitable for fire protection requirements of high buildings such as high-end residential, entertainment places.
一、Product overview
Product anti-theft performance is strong, strong, decorative, anti-theft and fire prevention, a dual-use door, with steel anti-theft security door as the basic core. All products are made of high quality materials, fire integrity performance high insulation performance outstanding, suitable for fire protection requirements of high buildings such as high-end residential, entertainment places.
The use of concrete accelerator
2022-12-101. Concrete accelerator is a kind of surface active material, added to concrete, cement particles play a diffusion effect…What should we pay attention to when constructing powder accelerator?
2022-12-101. Raw materials: Quality shall meet JC476-1998 standards, cement shall be qualified and unexpired Grade 32.5 (original 4…What are the commonly used support and reinforcement technical measures outside the dug tunnel
2022-12-10Shoting-anchor excavation method refers to the construction method of tunnel construction by excavation of underground tu…
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