6P IC Socket 80pcs/tube

Clip (contact 4 fingers): beryllium copper, heat treatment or PHBZ ??? Plating (jacket): Tin plating: 2um / 80u "nickel, 5um / 200u" tin ????????????????????????????????????????????????? Gold plated: 2um / 80u "Nickel, all gold ??? Plating clips (contacts): 2um / 80 u "Nickel plated, gold plated or tinned ??? Insulator (black): Glass-filled thermoplastic polyester UL94V-0 ? The company is located in: Electric Current Rating: 3 Amps / Contact Max ??? Contact resistance: α4mΩ contact ??? Insulation resistance: ≠ 10000MΩ at 500VAC ??? Rated voltage: 100 VRMS / 150VDC