Loading Port:Shanghai
Payment Terms:TT or LC
Min Order Qty:1 m.t.
Supply Capability:1000 m.t./month
7XXX series aluminum alloy is mainly added zinc and also a small amount of magnesium and copper. Some of the super-hard alloys among this series are nearly as hard as steel due to the addition of zinc, lead, magnesium and copper to the composition. It can be strengthened by heat treatment. Main applications: aviation sector (strength-bearing parts and undercarriage for airplanes), rockets, propellers, space-crafts
(1).Grade Alloy: 1050,1060,1070,1100,3003.
(2).Producing Standard: ASTM,EN,DIN,JP,CN.
(3).Temple Level: O(soft) ,H14,H24,etc.
(4).Thickness:0.3mm-3.0mm
(5).Diameter:50-1250mm
Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction. Since 1983 the world top coal producer has been China.In 2011 China produced 3,520 million tonnes of coal – 49.5% of 7,695 million tonnes world coal production. In 2011 other large producers were United States (993 million tonnes), India (589), European Union (576) and Australia (416).[9] In 2010 the largest exporters were Australia with 328 million tonnes (27.1% of world coal export) and Indonesia with 316 million tonnes (26.1%),while the largest importers were Japan with 207 million tonnes (17.5% of world coal import), China with 195 million tonnes (16.6%) and South Korea with 126 million tonnes (10.7%).
