Marine manhole cover - GB11628-89 TYPE B

1)Cover Material: steel, 2)Screw Material: Stainless Steel, 3)Surface treatment: sandblasting, 4)Certificate: CCS - details see: https://www.vehicleto.com/marine-manhole-cover-10030746

Place of Origin: Jiangsu China (Mainland)	Brand Name: JIEFA	Model Number: GB11628-89 TYPE B	Part: marine equipment
Material: steel	window: Aluminum or steel	color: oxidation character.	Glass: Tempered glass, or fire-resistant glass or electrically heated glass.

Marine manhole cover

Used for the ship watertight and oil tight manhole cover

With reasonable price and good in quality

Smooth surface without cracks

Good wear and corrosion resistance,never rust

To meet ISO9001;2000

Can issued BV CCS ect certificate

Type:A/B/C/D

Size:

type	Size of clear opening	Cover thickness	Bolt diameter	Bolt quantity
A	450×350	4mm~10mm	M20	16
	600×400	6mm~12mm	M20	20
	800×600	8mm~14mm	M20	26
B	450×350	4mm~10mm	M20	16
	600×400	8mm~14mm	M20	20
	800×600	12mm~18mm	M20	26
C	450×350	10mm~14mm	M20	16
	600×400	10mm~14mm	M20	20
	800×600	12mm~18mm	M20	26
D	450×350	14mm~18mm	M20	16
	600×400	14mm~18mm	M20	20
	800×600	14mm~18mm	M20	26