... 1,industrial socket 16A 2, Material: The best impact resistance and toughness functional 3, standard :IEC60309-1 ... design and have the advantages of good electric insulation, good impact resistant function, dustproof, damp proof, waterproof (or watertight ... center and urban infrastructure construction, etc Material:The best impact resistance and toughness functional ,have passed throught 850 centigrade ...