CONTROL KNOB
有棱纹 0.250"（6.35mm） 轴，带有 侧面线 塑料 黑色
得捷:
KNOB RIBBED 0.250" PLASTIC
贸泽:
Knobs & Dials Phenolic Knob Molded ABS
Verical:
Switch Access Round Knob Rotary Switch
MASTER:
Switch Access Round Knob Rotary Switch
Powell:
Molded ABS Phenolic Knob