... use,to recess in the floor or ground,for use with main-voltage halogen lamp1.inner body: die-cast aluminium,Polyester ... powder-coaled with high anti-corrosion2.recess box:thermoplastic material3.outer frame:stainless ... thichness5.static weight allowed:2000kgs,maximum velocity of drive-over speed 25km/h6.certification:CE GS