Plastic Concrete Drain Cover Molds With 12 Holes

This is a customized plastic concrete drain cover mold,12 holes designed, So the concrete drain cover can be drain fast,Effective protection of the road will not water.

When pouring the production of this concrete drain cover,The diameter of the concrete particles should not be greater than 10 MM,Can be used Portland cement,Ordinary Portland Cement,Slag Portland cement ….In this way to pouring out of the concrete products, Whether in strength or the frost resistance, Or water absorption has a strong improvement.