HD 313.2.14 S1-1990 印制电路用基材.第2部分:规范.规范14:规定可燃性的酚醛纤维素纸覆铜层压板(垂直燃烧试验)
Base Materials for Printed Circuits Part 2: Specifications Specification No 14: Phenolic Cellulose Paper Copper-Clad Laminated Sheet of Defined Flammability (Vertical Turning Test) Economic Quality