Chrome steel ball working process:
2013/6/14 7:02:56
暂无图片。
详细介绍
Chrome steel ball working process:
Raw Material – Heading – Flashing – Heat Treatment – Hard Grinding – Lap I – Lap II – Visual Control – Roller Gauges - Packing
暂无图片。
Chrome steel ball working process:
Raw Material – Heading – Flashing – Heat Treatment – Hard Grinding – Lap I – Lap II – Visual Control – Roller Gauges - Packing