Storm sewer grate with slotted metal sheet in rectangular stone frame for urban drainage system
Keywords
storm,
sewer,
grate,
metal,
sheet,
rectangular,
stone,
frame,
urban,
drainage,
system,
infrastructure,
water,
flow,
rain,
grooved,
pipe,
cover,
road,
street,
construction,
industrial,
surface,
pattern,
texture,
iron,
steel,
drain,
grid,
ventilation,
environment,
city,
municipal,
public,
utility,
engineering,
maintenance,
safety,
floor,
ground