Trimetal rivet-type contacts

Trimetal rivet-type contacts (sorted into flat head and round head, see diagram

Disc type contacts, whose bottom shape as follows:

(1) Platform convex type;

(2) Non-convex type;

(3) Single-point convex type;

(4) Multi-point convex type;

(5) Ring-shaped convex type;

(6) Ring-shaped concave-convex type;

In addition to pure copper as the contact base material, copper-nickel alloy and so on can also be adopted to improve its welding performances.