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About product and suppliers:
        Alibaba.com offers 772 dock block products. About 24% of these are other marine supplies, 12% are plastic sheets, and 3% 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 769 dock block suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Spain, which supply 98%, 1%, and 1% of dock block respectively. 

Dock block products are most popular in Southeast Asia, North America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 271 with ISO9001, 168 with Other, and 32 with ISO14001 certification.