A.0.1 B.0.2 C.0.25 D.0.3
A.厚度為50mm,不應(yīng)小于40mm B.厚度為40mm,不應(yīng)小于35mm C.厚度為40mm,不應(yīng)小于30mm D.厚度為50mm,不應(yīng)小于45mm