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電工異形銅排及銅合金排 第四部分: 凹形排

Shaped copper and copper alloy bus bar for electrical purposes Part 4:concave bus bar
標準號:JB/T 9612.4-1999
Shaped copper and copper alloy bus bar for electrical purposes Part 4:concave bus bar
標準號:JB/T 9612.4-1999