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| Square size | Outer diameter | the inside diameter of | ||
|---|---|---|---|---|
| S | 62-52 | 40*30 | ||
| M | 76*66 | 50*40 | ||
| L | 91*76 | 65*50 | ||
| Round size | Outer diameter | the inside diameter of | ||
|---|---|---|---|---|
| S | 45 | 23 | ||
| M | 55 | 33 | ||
| UNIT:CM | ||||
