Swiss plug insert

Specification requirement(Swiss plug insert):
1.The surface of Swiss plug insert should level , smooth , no air hole , no shrink hole , no rag , no fracture etc.
2.Materials : H62 brass.
3.Plastic materials: PBT and 30% thermoplastic resins.
4. Fire-retardantly test: The flame goes out automatically within 30 seconds.
5.Pressure test: The Swiss plug insert can not be punctured using 2700 voltage in 5 seconds.