economizer tube
短语词组
- economizer breakup tube 省煤器爆管
- economizer tube cleaner 省煤器清管器
- economizer rectangular fin tube 省煤器鳍片管
- economizer fin -tube 节热器凸片管
- economizer ' s tube 省煤器管
- economizer tube repture 省煤器爆管
- coal economizer tube 省煤器管
- tube economizer 管式省煤器;省煤器
- straight tube economizer 直管式经济器 返回 economizer tube