Post-installed bolt fastening method | Hard rock system grating
Renovation of the existing buried drainage ditch to a bolt-fixed type by simply replacing the cover.
The High-Tension Hard Rock System Grating is a grating that can be easily installed on existing variable gutters or slim-type drop-in gutters, preventing the grating cover from popping up and wobbling.
- 企業：宝機材
- 価格：Other
