OKA CORPORATION BHD.
(519941-H)

Subsidiary Companies:
OKA Concrete Industries Sdn. Bhd.  (67634-M)
OKA Engineering and Trading Sdn. Bhd.
(329917-W)
OKA Readymixed Concrete Sdn. Bhd.
(329980-T)
Real Charisma Sdn. Bhd.
(442658-D)
Pembinaan Cahaya Emas Sdn. Bhd.
(601222-W)

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Products > Manholes

 

PDF Brochure

REINFORCED CONCRETE MANHOLES

MS 881 PT 1 : 1991
SPAN Approved
(previously JPP Approved)

 
 

                           

 

 

 

  

 


*

Contractors to ensure that distance from top of manhole cover to top step is 450 minimum and 600 maximum 

 

 

Typical Deep Manhole   

 

 




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