non-noise, and environment
protection. After the lathe maching, the top and the base can be
inosculation tightly, eliminating noise when vehicles
passing.
falling-proof
have
good compression bearing. Our products can bear **0KN and not be
destoryed, and which is greatly better than the national standards
(**0KN),and the power supply bureau standards (**0KN). It can bears
all kinds of heavy trucks rolling, and can prevent accident of the
cover falling.
nonslip
the
excellent casting technics makes the lines of covers clear,
increasing friction, and guarding against passerby slide into road
for the covering of rain, snow, and ice.
nice
appreance
exquisite workmanship, clear,
smoothly, well-distributed, non-air blister, zero defects,
legibility, and black bitumen coated, making the product
brightness, antioxidant, and corrosion attack.
top-grade
material
adopting ductile iron casting craft,
we improve the density of products, making them have the following
advantages: strong anti-pressure, bending and impact resistence,
heat/cold-proof, anti-friction, and so on.
Application: It
has a widely usage, which is can be used in the top-water of urban
construction, manhole of governmet in BD and checking pipeline,
heat addition, fuel gas, postage, tekecom, duct optical cable in
communication, electric power, street lamp, fire control, all kinds
of valve. And it also can be used in corrosion project,
ZFPGG.
