Real shot giant iron chain manufacturing process! Such a large chain c

Real shot giant iron chain manufacturing process! Such a large chain can only be used on ships.

This shovel may be used only for tens of thousands of tons of ships. I have seen more than 10,000 tons of oil tankers. Compared with such a larger one, those ships usually do not enter the port, stop at the outer port and put down the rafts, wait for the boats to transport oil into the port, those Shovel is bigger

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