【RAF Electronic Hardware】M0531-3-SS,电路板硬件 - PCB 2mm, 3.2 ID, M3 ROUND METRIC SPACER
M0531-3-SS-20,METRIC ROUND SPACERPASSIVATE6MM
M0531-3-SS-26,METRIC ROUND SPACERBLACK OXIDE,
【RAF Electronic Hardware】M0531-4-AL,电路板硬件 - PCB 2mm, 4.3 ID, M4 ROUND METRIC SPACER
M0531-4-AL-6,METRIC ROUND SPACERGOLD IRIDITE6
M0531-4-B,METRIC ROUND SPACERPLAIN BRASS6M
M0531-4-B-12,METRIC ROUND SPACERCLEAR ZINC6MM
M0531-4-B-5,METRIC ROUND SPACERNICKEL 6MM RD
