The conductivity aspect is a very important index to measure the warmth-insulation and cold-insulation influence of the heat-preservation materials. The decreased the conductivity element is, the greater the warmth-insulation overall performance might be. The conductivity variable of the substance is 0.034w/m�?k at a median temperature 0 �?. As this product https://snoopf693vky3.is-blog.com/profile