DUCTILE IRON TRENCH DRAIN GRATING Load Class: EN124 B125,C250,D400 Lenth: 500MM,600MM,1000MM etc. Wide: 100MM,150MM,200MM ... iron GGG50 (500-7)MOLDING: DISA LINELoading Class: EN124 B125, C250, D400Lock type: Stainless Steel bolts & nutsframe: Concrete or Polymer Concrete ...