extruded channel meaning in English

槽形挤压型材
挤压槽钢
挤压的槽钢

Switchgear ; extruded channel sections of aluminium for busbars
开关设备.汇流条用挤压槽形铝型材
Extruded channels in aluminium alloys
铝合金形挤压型材
Aerospace series - extruded channel section in aluminium alloys - dimensions
航空航天系列.铝合金挤压槽型型材.尺寸
Aerospace series - extruded channel section , in aluminium alloys - dimensions
航空航天系列. u形铝及铝合金挤压件.尺寸
Aerospace series - extruded channel section , exruded in aluminium alloys - dimensions ; german and english version en 2049 : 2001
航空航天系列.铝合金挤制槽形型材.尺寸