Gold Index: 609
Zhejiang Zhoushan Shenglong machinery co.,ltd [China (Mainland)]
Business Type:Manufacturer, Distributor/Wholesaler City: Zhoushan Province/State: Zhejiang Country/Region: China (Mainland)
parallel twin screw barrel
Depth of Nitrated Layer: 0.5-0.8mm Hardness of nitration: 900-1020Hv Fragility of nitration: Less than grade 1 Surface roughness: Ra 0.4um Thickness o
2014-12-31