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Retractor Device Series
This kind of product is comprised of steels and combing plates.It is used in bridges of preformed groove depth larger than or equal to 150mm.Products comply with:JT/T 327-2004 Highway bridges expansion and contraction installation.
Combing plate expan...
Modular expansion j...
Single-gap expansio...
Expansion and extra...
Unit sparse plate ...
Steel and combing p...
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