Precast concrete blocks for solar-panel bases with no site casting, also used to support office containers. Five sizes, 7–175 kg, chosen by the ballast weight you need.
Concrete rebar spacers that hold bars firmly, with several cover heights in one unit, for slabs and walls. Sold by the sack, round-base type available. Choose the cover your drawing specifies.
Concrete spacer combs for underground power and telecom ducts: keep HDPE ducts aligned and evenly spaced before the concrete pour. For 2" and 5" HDPE, three lengths, made to order.
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