Weigu editor teaches you how to identify high-end slow rebound

<span style=";font-family:Microsoft Yahei;color:rgb(51,51,51);letter-spacing:1px;font-style:normal;font-size:17px;background:rgb(255,255,255 ; Due to technical bottlenecks and differences in equipment, the density of domestically produced polyurethane is generally lower than 100D, while the highest abroad can reach 150D. Secondly, even products with the same density will vary greatly, mainly in terms of formula, process and raw materials. Caused by the difference, that is…