1,High quality alloy 2,Hight quality plastic raw material 3.Adornment casing material:Tempered glass Description of products1,High quality alloy2,Hight quality plastic raw material3,High quality cooper material4,High quality silver point5,Ues45# steel plate with PC fixed frame becoming one ,keep product strong and difficult deformation.6, Wiring caliber7,Productsmeet the GB16915-1-2003, GB2099-1- ...