Layers for this grade are made of 100% strong and pure PVC raw materials. Especially, the middle layer is made of eco-friendly material and has certificated by EN-71 and CA Prop 65.
The top and bottom 2 layers of this grade are made of half PVC raw material and half recycle material. And the middle layer is a hard PVC board to enhance its durability.
Grade C layers are all made of 100% recycle materials.