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

Detailed Product Description

Special screws in high quality to make special explosive in full specifactions.OEM and design service are available.

Abrasion resistant and corrosion resistant

Material:High quality alloy steel

           1)38CrMoAlA

           2)42CrMo

Technics:1)Heat-treatment

              2)Nitriding treatment