Product information:Ductile Iron Gray Iron manhole cover are manufactured for road construction, natural gas, water supply and drainage, telecommunications. Manhole covers and gratings should be smooth, no blisters, holes, distortion or any other defects. 

Size: 500mm*500mm,600mm*600mm,700mm*700mm,800mm*800mm, 850mm*850mmand so on.Many size can be choose,or according to customer's drawing or requirements.

Material:Ductile Iron GGG500,or according to customers requirement

Designs:EN124 A15, B125, C250, D400, E600 and F900 or As per customers' drawings or samples 

Processes:

A) Moulding boards

B) Green sand with hand moulding 

Coating: Cold applied black bitumen Or without Coating or as per customers' requirement

B125
Name	Outer Size	Inter Size	Height	Kg	Pcs/Pallets
Square Manhole Cover	300x300	200x200	24	6.5	60
	400X400	300x300	24	9	60
	500x500	400x400	36	16	30
	600x600	500x500	40	26	30
	700x700	600x600	40	41	15
	800x800	700x700	45	53	16

C250
Name	Outer Size	Inter Size	Height	Kg	Pcs/Pallets
Square Manhole Cover	400x400	300x300	35	13	60
	500x500	400x400	40	22	30
	550x550	450x450	45	28	30
	600x600	500x500	45	30	30
	700x700	600x600	50	50	13
	800x800	700x700	60	64	12
Square Drainer	400x400	300x300	45	15	60
	500x500	400x400	50	23	30
	550x550	450x450	45	26	30
	600x600	500x500	55	35	20
	700x700	600x600	60	48	13
Square Manhole Cover	400x400	300x300	75	21	20
	500x500	400x400	75	32	20
	550x550	450x450	75	38	20
	600x600	500x500	75	46	10
	700x700	600x600	75	57	10

D400
Name	Outer Size	Inter Size	Height	Kg	Pcs/Pallets
Square Manhole Cover	400x400	300x300	75	23	40
	500x500	400x400	75	31	26
	550x550	450x450	75	35.5	20
	600x600	500x500	75	45	20
	700x700	600x600	75	66	10
	800x800	700x700	75	81	10
	900X900	800X800	90	110	10
Rectangular Manhole Cover	1000X1000	900X900	100	135	10
	600x800	500x700	60	48	10
	600x800	500x700	75	60	10

 Relative products: