clear opening :600 mm height:100 standard:EN124 D400 hinged with lock.
clear opening :600 mm height:100 standard:EN124 D400 hinged with lock.
out size:850 clear opening:600mm height:100 material:ductile iron standard:EN124 D400
out size:850 clear opening:600mm height:100 material:ductile iron standard:EN124 D400
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Under the premise of ensuring the flatness, the manhole cover is integrated into the pavement and the road to achieve the effect of beautifying the city.
