丝号

长度（千米）

刺距 3"

刺距 4"

刺距 5"

刺距 6"

12X12

6.0617

6.7590

7.2700

7.6376

12X14

7.3335

7.9051

803015

8.5741

12-1/2X12-1/2

6.9223

7.7190

8.3022

8.7221

12-1/2X14

8.1096

8.814

9.2242

9.5620

13X13

7.9808

8.899

9.5721

10.0553

13X14

8.8448

9.6899

10.2923

10.7146

13-1/2X14

9.6079

10.6134

11.4705

11.8553

14X14

10.4569

11.6590

12.5423

13.1752

14-1/2X14-1/2

11.9875

13.3671

14.3781

15.1034

15X15

13.8927

15.4942

16.6666

17.5070

15-1/2X15-1/2

15.3491

17.1144

18.4060

19.3386