DPFC heat insulated pad is based on PPS resin with middle-empty glass micro - bead and glass fiber as reinforcement.
DPFC隔热垫块是以PPS树脂为基体，以中空玻璃微珠、玻璃纤维作增强材料制得的。
The paper systematically analyzed theory basis of DPFC technology and its application in all kinds of protection devices, and then summed up the unique advantages of these devices.
文章系统分析了“工频变化量”技术的理论基础和在各种保护装置中的实际应用，并总结了这些保护装置的独特优势。
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