- 搜標題
- 搜題干
- 搜選項
單項選擇題
焊接空心球壁厚減薄量允許偏差為壁厚的（）
A.10%且≤1.2mm
B.12%且≤1.4mm
C.13%且≤1.5mm
D.13%且≤1.4mm
A.10%且≤1.2mm
B.12%且≤1.4mm
C.13%且≤1.5mm
D.13%且≤1.4mm
