密封轴承

通用型塑料粉碎机，采用密封轴承，使轴承转动长时间保持良好；刀型设计合理，产品成粒均匀；刀座热缩处理，外形设计美观大方。

sealed lead acid battery

sealed bid

breathing air in sealed rooms

sealed-gage pressure transducer

hermetically-sealed

semihermetically sealed condensing unit

hermetically sealed condensing unit

sealed contacts