80/156 Come Twin (2Knots) Cylinder
Screw Cylinder Maternal:38CrMoAUA
2Knots Cylinder Alloy Length:1100mm
Screw Alloy Length:1120mm
Whole Cylinder Alloy Length:300mm
Screw Aloy Length:350mm
Screw Cylinder Alloy Depth:0.8-2.0mm
Hardness after Adjustment: HB260-290
https://www.foamingscrew.com/product/come-twin-foaming-screw-material-special-barrel-screw/80-156-come-twin-2knots-cylinder-2.html