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It is hand made of concrete MB 35 which is build into steel moulds on vibro table.It is used for for making coal-pits, as final element. It is supposed for setting up all kinds of cast covers.This product satisfy JUS.UNI.051. Standard.
They are hand made of concrete MB 35 which is build into steel moulds on vibro table.They are used as covers for wells,coal-pits,reservoars, and for other similar needs.
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