Security, easy operating, reliability sealed door with radiate bolt lock system, There have two specification of sealed door, the single-layered and double-layered, the latter could separated the polluted from cleaned area.是什么意思_Security, easy operating, reliability sealed door with radiate bolt lock system, There have two specification of sealed door, the single-layered and double-layered, the latter could separated the polluted from cleaned area.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句