plaats van herkomst
Zhejiang, China
naam van het merk
QY schroef vat
parallel twin screw and barrel
parallel twin screw and barrel
Screw Barrel HS code
8477900000
Screw Barrel Nitriding time
more than 120 hours
Screw Barrel Roughness of the surface
Ra0.4um
Hardness after Hardening & Tempering
HB240-280
Screw Barrel
twin screw barrel
Bimetallic
Fe-based,Ni-based,Tungsten Carbide
Warranty:common
Common 1-2 years,bimetallic is much longer