Release date:2015-4-21 22:21:07 Source:Original site
Normalraingrate: thatsteel grating. Raingratetube:steeledgingis to usesteel grating. U-raingrate:Angleedgingis to usesteel grating. Anti-theftraingrate:Theangleisframedinreinforcedconcrete,steel gratingand theninto theanglebox. Is generally recommendedthat you useanti-theftraingrate.