品质管理/Quality Control
质量检测
Quality inspection
上大股份质量控制流程图
Quality control flow chart
生产工艺
Production process
真空冶炼工艺
Vacuum Smelting Process
VD/VOD精炼工艺
vd / vod Refining process
AOD精炼工艺
AOD Refining Process
精炼+电渣或真空自耗工艺
Refining + ESR/VAR Process
精炼+全自动无污染清洗工艺
Full-automatic Cleaning Process
