找考题网-背景图
单项选择题

A. Cement wash, bitumen and paintB. Metal primers, unde……

()are the three different coatings which can protect metal from corrosion.

A. Cement wash, bitumen and paint
B. Metal primers, undercoats and topcoats
C. Varnishes, heat-resistant paints and anti-fouling paints
D. Cement wash, primer and undercoat