Conical geminae screw pro PVC pipe, profile, sheet, lignum, granulis et WPC

　　Material: High Quality 38CrMoala

　　Processus: Advanced Nitriding & Bimetallic Processus

　　Durness post induratione & temperatio: HB280 - CCCXX

　　Nitrided duritia: HV900 - M

　　Nitrided Case Profth: 0.45 - 0.8mm

　　Material: 38cmoaia, Sacm645, AII4140, SKD61, GHII3

　　Quenching duritia: Hrc55 - LXII

　　Nitrided fragtileness: Minus quam gradu II

　　Superficiem asperitas: 0.4

　　Stupra recta: 0.015mm

　　Chromium plating layer duritia post nitriding: hv≥950hv

　　Chrome Plate Crassitudo: 0.05 - 0,10mm

　　Alloy profundum: 2.0 - 3.0mm

　　Screw refrigerationem:

　　1.Anide est aqua / oleum refrigerationem ratio

　　2.Outside est oleum refrigerationem ratio

　　Ferrum Refrigerant

　　1.outside est aer refrigerationem ratio

　　2.out parte est cupro pipe circa refrigerationem ratio

　　Accessories: nolite anulum et washers ad adjust in spatio inter stupra et dolium