Retainers are mainly provided with copper chromium zirconium class 2 (L), copper beryllium cobalt class 3 (L) and NP200 alloy (class 3) which was introduced by Novin Pardazaan Co., Ltd.
The most important thing about the welding point holders is the correct design to achieve the welding point and the precise construction of the cooling path of the part, which leads to increasing the life of the part and the electrode (welding point heads) used with it.
