Zhoushan Zhongyang Screw Manufacturing Co., Ltd. [China]

Detailed Product Description

The parellel twin screw's Abrasion resistant and corrosion resistant

The parellel twin screw of Material:High quality alloy steel

         1)38CrMoAlA

         2)42CrMo

         3)9Cr18MoV

Technics:1)Heat-treatment

              2)Nitriding treatment

              3)Hard-chrome electroplated

              4)Bimetallic-alloy coating spraying

Technical parameter

Nitriding depth:0.50-0.80mm