Carbon Steel with harden
Easily taking out the piston with assistant handle
All in Blow Mold case
Packing: Color Label (or Color Sleeve) + PE shrink
Quick change design for 3 sizes or adapters:
Working Ranges from 25mm to 35mm
1.) Adapter a. range from 35mm to 45mm
2.) Adapter b. range from 45mm to 55mm