REVEN

1) Moulded plastic piece's surface should be smooth, without air vent, contract hole, edge warping and rupture
2) Metal material: H62 brass
3) Plastic material: PBT(environmental protection granule)
4) Fire retardance test: Extinguish automatically within 30 seconds when away from fire
5) Endurance test: Won't be punctured within 5 seconds when moulded using 2, 700V power