Moreover, their height should be 0.3 m.
Some rules for the construction of a grillage
This design cannot be cut or intersected by a sanitary pipeline. 5 cm deviation is allowed from the vertical of centers;
Moreover, their height should be 0.3 m.
Some rules for the construction of a grillage
This design cannot be cut or intersected by a sanitary pipeline. 5 cm deviation is allowed from the vertical of centers;
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