Durostone sheet is a composite material made of high blast nano fiber felt and high-performance epoxy resin. It has the characteristics of low thermal conductivity, flame resistance, high temperature resistance, anti-static, light weight, chemical corrosion resistance and so on. Durostone sheet is widely used in electronics, aviation, shipping and other fields. In the field of protective materials for welding in electronic manufacturing, synthetic slate material has the best choice for processing workpieces with easy processing and high strength requirements, and the thin plate maintains the maximum bending strength in the hot state and heating process. It provides a durable, high temperature resistant and anti-static PCB carrier for wave soldering /reflow soldering in electronic manufacturing. It can maintain good mechanical strength in continuous use at a high temperature of 280 degrees.