TypeOperationSpeedBestBetterGood
Piston RingRough35--C463 L5 VG
50---
Finish35--C60 L5 VG
50---
TypeOperationSpeedBestBetterGood
Grey Cast IronRough35C543 J7 B190K-C543 K5 B190
50C543 J7 B190K/45-C543 K5 B190/45
SG IronRough35-C543 K5 B903-
50-C543 K5 B903/45-
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