Ductile iron manhole cover

Cast-iron tree grate is widely used and can be customized according to demand , Cast iron material can be customized tree protection board carefully selected professional team craftsmanship  and Can play a role in protecting tree roots to prevent mud benefits. The installation of tree protection boards in the tree pool can protect the roots of the trees and reduce the growth of trees. The use of protection boards can make the tree pit parallel with the sidewalk, reduce the unsafe risks of passers-by tripping when walking, and improve the urban cultural taste and beautify the urban environment  
Tree Manhole Cover has the following characteristics  1. Protective root  2. Durable and breathable 3.  Dust reduction