Ruler Manufacturer Directory
| Name | Product | Website | City |
| Kearing | Sewing, Quitling, Patchwork Ruler | https://www.kearing.com/ | Shanghai |
| Dihan | Clothing Prototype Ruler | https://shop24d816808ym69.1688.com/ | Changsha |
| Xinye | Fashion Design Ruler | https://shop58029065.taobao.com/ | Changsha |
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