The ultimate manhole covers site
or concrete
, though plastic (composite) covers
also exist.
, round
, or square
forms.
or the name of a telecom provider
appears on communication covers, the word SEWER on sewage covers
, and so on.
or diamonds
.
, Neco
, Thermodrain
, and others.
, the British standard BS497
, the Indian standard IS 1726
, and the Indian certification ISI
.
Everlast - India (5)
,
Neco (5)
,
Thermodrain - India (3)
,
Ashok Iron Works (1)
,
J.R. Cover Company (1)
,
Vikrant (1)