The product possess
reinforced film plastic enclosure.
They are special seal
in structure among body and top cover ampere meter
signal, lamy,button,rotary,switch,cable incoming position,to
reach corrosion-resistant and sealing effect.
Column operation pole
are made up of 1 Cr18Ni9Ti,and cast-iron base,there
are cable incoming sealing equipment between column
and body,steel pipe and base are phosphorized and
sprayed with plastic operation chimentions.
More reliable and safety
due to less holes and more functions.
