... no radiation 1-3mm ,1-3.5mm Safety-Color Ceramic AggregatesUse:They are for highways, airports, airport ... resistance, no radiation, low water absorption, bright color, high-grade appearance, never fade, hard solid, ... , wear resistance, good performance, slippery body color, rich color, never fade.Shape:For irregular granular appearanceSize1- ... receive your early inquiry! Safety Color Ceramic Aggregates