题目内容
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[单选题]
铝及铝合金试板厚5~15mm时,可开单面V形坡口,坡口角度约为()。
A.30°
B.45°
C.60°~70°
D.80°
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A.30°
B.45°
C.60°~70°
D.80°
A.φ6mm
B.φ8mm
C.φ10mm
D.φ12mm
A.4~6mm
B.6~8mm
C.8~10mm
D.10~12mm
A.0.8mm
B.0.5mm
C.1mm
D.1.2mm