PCB Type

ANSI Grade / PCBSingle RodeDouble SideSilver T.HoleCarbon
FR-1 🔴 ⚫⚫⚫
FR-2 🔴 ⚫⚫⚫
CEM-1⚫⚫⚫⚫
CEM-3 🔴 ⚫⚫
FR-4 🔴 ⚫⚫
Metal 🔴