For copper scraps, whether it's turnings, chips, filings, shavings, cuttings, sawdust, drillings, borings, debris, granules or sludge, Ecohydraulic copper recycling machine can help. If your scraps are small chips, you can choose our Copper Briquette Machine to press your chips to be small blocks. If your scraps are shavings or turnings, you can choose our Copper Baler to press your chips to be square bales, if your scraps are big like pipe tube sheet plate rebar, etc., you can choose our copper shear to cut your scraps to be smaller pieces. Bronze Recycling Machine, Brass Recycling Machine, Copper Scraps Recycling Machine, Copper Chips Recycling Machine, Waste Copper Recycling Machine Jiangyin Metallurgy Hydraulic Machinery Factory , https://www.eco-metalsrecycle.com
In 1912, after the sinking of the iceberg, the Titanic caused attention to the detection of underwater objects. British meteorologist Richardson suggested using echoes to detect icebergs. Before the First World War, the American radio pioneer Professor Fresenton took the lead in testing echo sounding and succeeded.
By 1930, echo sounders had replaced the long-established plumbs for underwater detection. Since about 1960, most ships have been equipped with echo sounders with minimal error. Computer analysis is now available to provide live photos under the keel with high accuracy. Therefore, it is no longer dangerous to lead a tanker with a deep draft to enter Hong Kong. The echo sounder is widely used to determine the location, size and depth of submarine obstacles. It is used by oil companies to detect the condition of submarine tubing and to jeopardize the dynamics of the tubing. Marine archaeologists use it to explore the shipwreck.
In 1930, the echo sounder replaced the traditional plumber sounding method.