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5.7.1 unless the context otherwise requires plating layer of hot dip method must
be used. By a layer of smooth, clean-plated
Layer composed of zinc, no
defects, the thickness of line, in line with the peer-to-peer or BS729
standards. Galvanized
Powder, metal rust or other selection methods can not
be pre-approved the use of engineers.
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5.7.2 greater than 9.5mm
diameter steel bolts and nuts to be in accordance with BS729 Part I hot-dip
galvanized. By
Other bolts and nuts to be cadmium plated in accordance with
BS3382, and passivation.
5.7.3 Unless specified, semi-finished products such
as hot-dip plated steel sheet to meet the needs of the post-processing is
required to comply with the production of
Coating weight of the following
requirements:
a) When do not have to paint decorative, coating weight should
be not less than the surface of 300gm-2, that is, both for the
600gm-2;
b) When the need to paint decorative, coating weight should be not less than
the surface of 60gm-2, that is, both for the
120gm-2;
5.7.4 ready to
hot-dip galvanized components can not affect the mechanical properties. In
pre-galvanized, to be completed by
There are parts of the drilling, and
bending in the hole.
5.7.5 because of transportation or installation of zinc
resulting in damage to the location of the need to completely remove all
corrosion and loose material
Material, then coated with two layers of
zinc-containing paint has been recognized. Pre-galvanized pipes and wires to the
incision should be
The same way. Pre-galvanized pipe thread incision should
be access to the components in the pipeline immediately before applying
Granted a zinc layer of paint, and after the second layer should be painted
with zinc paint, to cover the pipes and components
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