题目内容
(请给出正确答案)
[多选题]
在保险杠材料上涂原子灰前的不正确作业是哪几个()
A.研磨清扫后涂环氧底漆
B.研磨清扫后涂中涂底漆
C.研磨清扫后涂塑料底漆
D.研磨清扫后涂色漆打底
答案
ABD
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A.研磨清扫后涂环氧底漆
B.研磨清扫后涂中涂底漆
C.研磨清扫后涂塑料底漆
D.研磨清扫后涂色漆打底
ABD