Oval Flat Type Manhole Cover

Model B2

Oval Flat Type Manhole Cover

Model	Nominal size	L1	L2	L3	B1	B2	B3	S	Fastener		Weight(kg)
									Diameter	Quantity
B1	450*350	450	470	570	350	370	470	4	M20	16	28.9
								6			33.8
								8			37.2
								10			41.2
	600*400	600	620	720	400	420	520	8		20	49.5
								10			55.6
								12			61.2
								14			67.6
	800*600	800	820	920	600	620	720	12		26	67.2
								14			75.2
								16			82.8
								18			89.9
B2	800*400 (Oval)	800	830	930	400	430	530	12		24	56.8
								14			63.2
								16			69.2
								18			76.2

Stub is stainlesss steel SUS304 nut material could be steel, brass, stainless steel, as user's option.

Marked sample Long circular flat type manhole cover which nominal size 600*400, cover plate thickness 10.

Marked as MANHOLE COVER B1 600*400-10 CB/T19-2001