-
The fire-resistant glass consists of single and compound glass according to the structure.
防火玻璃按结构分等级,可分为单层防火玻璃和复合防火玻璃。
youdao
-
The fire-resistant glass consists of single and compound glass according to the structure.
防火玻璃按结构分等级,可分为单层防火玻璃和复合防火玻璃。
youdao