12 Inch Round Drain Cover C250 Manhole Cover

Round C250 Manhole Cover Specification:

Material: QT500-7

Certificate: BS EN124:2015, ISO9001:2008, ISO14001 2015, ISO45001:2018

Tensile strength：≥500Mpa

Yield strength: ≥320Mpa

Elongation rate: ≥7%

Hardness: HBS170-230

Material: ductile cast iron

Surface treatment: non slip surface

Design feature: anti-theft

Loading capacity: 25 ton

Round C250 Manhole Cover ISO9001:2008 Certificate

Round C250 Manhole Cover ISO14001:2015 Certificate

Round C250 Manhole Cover ISO45001:2018 Certificate

Round C250 Manhole Cover Delivery by container