A.產(chǎn)品設(shè)計要求 B.出廠時故意錯位安裝 C.運(yùn)輸原因?qū)е抡{(diào)節(jié)螺栓松動 D.板材裁切傾斜
A.300mm B.200mm C.400mm D.500mm
A.1600mm B.1700mm C.1800mm D.1900mm