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Extruding screw and barrel
Tech datas :
Nitride Layer Depth | 0.5-0.8 mm |
Nitride Layer Hardness | 950 – 1020 Hv |
Nitride Fragility | Less than Grade Two |
Surface Roughness Degree | Ra 0.4 um |
Cr-plating Layer Hardness | 850 Hv |
Cr-plating Layer Depth | 0.03-0.08 mm |
JY good quality plastics extruding machine screw