Tools

Recently, the manufacturing of bolts has been made by high speed multi-stage forming machines. To meet various conditions and reduce costs, it is impossible to use a single material and heat treatment. After years of continuous research and development by Chun Zu,we introduce five types of materials to match customer needs.
Our company can provide various types of Hexagon trimming die、Square trimming die 、bihexagon trimming die and other special trimming dies
Welcome to send us the inquiries w...

Threading rolling dies and the metric and the US standard thread rolling die for tapping screw manufactured by
Chun Zu Machinery Industry Co., Ltd, are made of alloy tool steel of high hardness and strength under full
automatic computerized machinery precision processing procedure. Our products perform the features as follows

Hot and Cold Forming Tools