OK-style lightweight square manhole cover
Various combinations are possible according to the on-site situation! Height adjustment can be easily done by stacking.
The "OK-style lightweight square manhole" is manufactured with a blend of PVA (vinylon fiber), making it a thin and lightweight product. Height adjustment is easy by stacking the main body and the riser. In addition to concrete lids, we offer various types including cast iron lids, cast iron grates, and grating lids. 【Features】 ■ The concrete lid does not have holes for handles, preventing unpleasant odors. ■ It is 3 to 5 centimeters thinner than standard manholes. ■ It weighs about half of a standard manhole. *For more details, please refer to the PDF document or feel free to contact us.
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