1 Inspect the convenience and reliability of all kinds of doors、windows、manhole covers、hatch .Inspect the closing of louver of funnel.
1 Inspect the convenience and reliability of all kinds of doors、windows、manhole covers、hatch .Inspect the closing of louver of funnel.
检查各种门、窗、人孔盖、烟囱百叶窗、舱口盖操作的便利性和可靠性。检测烟囱百叶窗的闭合性。