square frame round opening manhole covers 600x600

Place of Origin:

Liaoning, China

Brand Name:

HR

Model Number:

customized

Loading Test:

Testing before shipping for the smooth surface and loading

Service Life:

More than 30 years

Color:

Pitch black or as per customer's require

Certification:

ISO9001:2000

Standard:

ASTM, JIS,AISI,BS, DIN, EN, ISO,etc

Technology:

Casting&Machining

Inspection:

Advanced Equipments+ Professional Quality Team

Clear Opening diameter:

300-1200mm

Process:

Sand casting

Loading Pressure:

400kN

Dimensions:

Drawing

Material:

Iron

Application:

sewage pipeline, for drainage system