Brand Name： E-World Place of Origin: Sichuan,China Model Number: EYH40 Locking method： Safe and reliable self-locking system Housing material： Housing Copper alloy, stainless steel Temperature range： -40℃～+185℃ Note： 1.Clad layer Chrome plating, electric polishing 2.Contacts Copper alloy with gold plating/Kovar alloy with gold plating 3.100% anti-oblique insert protection, convenient for blind-mating connection