HMC/SMC (Composite Material With Regenerated Resin ) Manhole Cover & Water Grate to EN 124 with A 50, B125, C250 D400 E600 450 mm x 450mm B125 450 mm x 450mm C250 458mm x 458mm A15+ 458mm x 458mm A15+ 458mm x 458mm A50 458mm x 458mm A50 458mm x 458mm B125 458mm x 458mm B125 458mm x 458mm C250 458mm x 458mm C250 600mm x 600mm B125 600mm x 600mm C250 600mm x 450mm B125 600mm x 450mm C250 400mm x 250m A50 530mm x 532mm A50 806mm x 416mm B125 886mm x 806mm B125 845mm x 784mm B125 1295mm x 783mm B125 438mm x 233mm A15+ 490mm x 285mm A15+ 557mm x 406mm B125 557mm x 406mm B125 450 mm A15+ 450 mm A15+ 450 mm A50 450 mm A50 450 mm B125 450 mm B125 450 mm C250 450 mm C250 600 mm A15 600 mm A15+ 600 mm A50 600 mm A50 600 mm B125 600 mm B125 600 mm C250 600 mm C250 650 mm A15+ 650 mm A15+ 650 mm A15+ 650 mm A15+ 650 mm A50 650 mm A50 650 mm A50 650 mm A50 650 mm B125 650 mm B125 650 mm B125 630 mm B125 630 mm C250+ 650 mm C250+ 650 mm C250 650 mm C250 650 mm C250 630 mm C250 630 mm D400 630 mm D400 670 mm C250 670 mm D400 670 mm C250 670 mm C250 670 mm C250 700 mm C250 670 mm D400 670 mm D400 670 mm D400 700 mm D400 800 mm A50 800 mm B125 800 mm C250 800 mm D400 872 mm C250 650 mm D400+ 900 mm C250 650 mm D400+