多项选择题
A.当构件厚度≥5mm时,不小于86μm B.当构件厚度<5mm时,不小于65μm C.当构件厚度≥5mm时,不小于96μm D.当构件厚度<5mm时,不小于75μm
A.100MM B.150MM C.200MM D.300MM
A.50MM B.100MM C.150MM D.200MM