A.夾層玻璃 B.安全玻璃 C.鋼化夾層玻璃 D.鋼化玻璃
A.1/2 B.1/3 C.1/4 D.1/5
A.門扇對(duì)角線長(zhǎng)度差 B.扇與上頂間留縫 C.扇與地面間留縫 D.相鄰扇高度差