The covers in Na’an are usually made of metal
or concrete
, and their shape is round
, rectangular
, or square
.
The covers in Na’an are not colorful. There are covers in a golden hue, mainly those manufactured by the company “Wolfman”
.
The function of the cover usually appears on it, or can be inferred from its shape (drainage
, electricity
, or communications
).
In general, the design of the covers in Na’an is not distinctive and corresponds to standard designs typical of the manufacturer.
Manufacturers The manufacturer’s name usually appears on the covers. Most covers are manufactured in Israel by several leading manufacturers - Wolfman
, Menashe Baruch
, and Redimix
.
Standards Cover standards include standards unique to Israel: the Israeli Standards Institute mark
, and Israeli Standard IS 489 (equivalent to the international EN124 standard)
. In addition, the international EN124 standard
and the various load classes (D400)
are also used.