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About product and suppliers:
        Alibaba.com offers 626 dock block products. About 30% of these are other marine supplies, 11% are plastic sheets, and 4% are other plastic products. 

A wide variety of dock block options are available to you, such as hinge, hose. You can also choose from ciq, ce. As well as from free samples, paid samples. 

There are 623 dock block suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Spain, and Nigeria, which supply 99%, 1%, and 1% of dock block respectively. 

Dock block products are most popular in Southeast Asia, North America, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 285 with ISO9001, 54 with ISO14001, and 34 with Other certification.