模具抛光对照表 SPI
抛光级 别 说明粗糙度备注 Finish Type Description Roughness Averaging Comments 3# 钻石膏抛光达到镜面或光学要求 grade #3 diamond buff for mirror or optical finishes 6# 钻石膏 需要很长时间与成本才能达到此 类抛光级别 grade #6 diamond buff most time consuming and costly finishes to achieve 15# 钻石膏对钢料的质量要求很高 grade #15 diamond buff steel grade important to results (D-M-E No.3 or No.5 steel recommended
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