U

部件型号	厂商	描述
U-4	Curtis Industries	BARRIER BLOCK HI CURRENT 4CIRC
U-2	Curtis Industries	BARRIER BLOCK HI CURRENT 2CIRC
U-3	Curtis Industries	BARRIER BLOCK HI CURRENT 3CIRC
U-1	Curtis Industries	BARRIER BLOCK HI CURRENT 1CIRC

1
1-1