球铁
检查井盖（可选）
盲提孔
| 产品序号 | 外框尺寸 | 盖子尺寸 | 每拖 数量 |
|||
| O X O’ | A X A’ | H | C X C’ | e | ||
| 2542B | 254X425 | 290X460 | 68 | 274X438 | 30 | 100 |
| 2542XB | 254X407 | 328X528 | 67 | 274X438 | 30 | 100 |
| 2849B | 286X496 | 440X640 | 77 | 328X528 | 30 | 24 |
| 2849BX | 286X492 | 400X600 | 81 | 328X528 | 30 | 24 |
| 3656B | 368X566 | 467X667 | 83 | 400X600 | 32 | 24 |
| 4262B | 428X628 | 529X729 | 78 | 468X668 | 33 | 24 |
| 4262BX | 428X628 | 600X800 | 78 | 468X668 | 33 | 12 |
| 73113B | 730X1130 | 900X1300 | 69 | 800X395X3 | 34 | 14 |