channel grating, cast iron grating

Specifications

Grating feature:
1---Load-bearing great;
2---Corrosion resistent;
3--Superior safety performance.
4--ISO9001:2000

 

paint:	Bituminous paint
packing:	wooden pallet (normal)
material: (ductile iron )GGG500-7
	Tensile strength:  500Mpa
	Yield strees:  320Mpa
	Elongation rate: 7%
	Hardness: HBS170~230
Standard	EN124, BS EN124, UNI EN124

 

    

1----Load-bearing great: the toughness of ductile iron is fourfold that of ordinary cast iron, close to steel materials, suitable for all kinds of road use!

2----Corrosion resistent: Sewer internal environment complex, filled with various chemical substances, ductile iron does not suffer chemical corrosion, service life more than 30 years.

3---- Opens conveniently: light weight, single unarmed can be open, convenient downhole maintenance!

4----Superior safety performance: It often occurred underground explosion accident, fly up covers scarred passers-by , manhole covers integration connections will not depart from the ground.