供应防火材料
nead the mend materials and then put them in the hole uniformly and densely with suitable tools Requi rements:the surface should be smooth and neat and remains no gaps.
○lf lower atmosphere temperature and hard mend material which are not convenient forconstruction you can put the material lnto the warm water(50 to 80℃) and intenerate it but pay attention to not heat the material with fire directly.
○When mending relatively large holes you are suggested to use it together with PFB fire safety
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