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About product and suppliers:
        Alibaba.com offers 2,961 leveling ruler products. About 24% of these are level measuring instruments, 7% are other measuring & gauging tools, and 4% are rulers. 

A wide variety of leveling ruler options are available to you, such as ruler, ballpoint pen, and multi knife. You can also choose from plastic, metal. As well as from straight ruler, triangular ruler. And whether leveling ruler is yes, or no. 

There are 2,961 leveling ruler suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of leveling ruler respectively. 

Leveling ruler products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 511 with ISO9001, 297 with Other, and 31 with OHSAS18001 certification.