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About product and suppliers:
        Alibaba.com offers 2,658 leveling ruler products. About 23% of these are level measuring instruments, 5% are rulers, and 1% are math sets. 

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

There are 2,658 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 Mid East. 

You can ensure product safety by selecting from certified suppliers, including 493 with ISO9001, 260 with Other, and 32 with OHSAS18001 certification.