IPC-SM-840E-CN: 永久性阻焊剂和挠性覆盖材料的鉴定和性能规范
Standards: PCB Fabrication: Flex
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IPC-SM-840E: Qualification and Performance Specification of Permanent Solder Mask and Flexible Cover Materials
IPC-SM-840E-CN: 永久性阻焊剂和挠性覆盖材料的鉴定和性能规范
IPC-SM-840E: Qualification and Performance Specification of Permanent Solder Mask and Flexible Cover Materials