Packing Information

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Product description

Our company professional produces marine manhole cover.There are 5 types for clients to choose from,such as A,B,C,D and E.This product is mainly applicable to marine water-tight or oil-tight manhole cover but not to boiler and pressure tank.Based on the shape,it’s classified into oval and round.The oval shape is used more widely.Based on the tightness,it’s classified into oil-tight and water-tight.The difference between them lies in the material of sealed gasket.For oil-tight,oil-resistance rubber should be adopted while sea or fresh water-resistance rubber should be adopted for water-tight.Based on if the hole surface exceed or not after installation,it’s classified into exceeded or embedded.Based on the structure of exceeded manhole cover,it’s classified into 3 types,such as A,B and C.While for the embedded manhole,it’s classified into 2 types,such as D and E.

Executive standard

National standard:GB11628-89

 

Why Choose Wusheng

A. Excellent service before purchasing

Wusheng know what the best cost-effective products are. According to clients’ circumstances, we will 

offer most suitable products for them.

 

B. Guaranteed quality

Most products which Wusheng offered are with high quality and also provide warranty to security benefits.

 

C. Rich experience and Customized Products

Wusheng has enormous resources of various marine equipment. All of our products are customized. We can 

offer products according to your detail equipment and drawings.