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. ：QA19-2、QA19-4、QA110-4-4、QA111-6-6、QA110-5-5；C61800、C62300、C63280、C63000. ：2mm-200mm. 11.6，
contact2011815 · QA111-6-6 CuAl10Ni5Fe4-ЪрA Ж CuAl11Ni6Fe5 CA104 CuAl11Ni6Fe4 QA110-3-1.5 CuAl10Fe3-CuAl10Fe3Mn2 CA105 ЪрAЖ-МЦ C6161 C62300 10-3-1.5
contact201031 · 6.5-0.15 QSn6.5-0.4 CuSn6 CuSn6 CuSn6 ЪрOф PB103 CuSn6p C5191 - 6.5-0.4 QSn7-0.2 CuSn8 CuSn8 CuSn8 ЪрOф PB103 CuSn6p C5210 - 7-0.2 ： GB ISO
contact1 GB JIS Q215A SS300 A215B (A2,C2) (SS34) Q235A SS400 Q235B (SS41) Q255A SM400A Q255D (A4,C4) SM400B (SM41A,SM41B) Q275 (C5) SS490 (SS50) GB JIS 08F SM9CK 10 SM10C 15 SM15C 20 SM20C 25 SM25C 30 SM30C 35 ...
contact2023324 · Copper’s widespread usage began during the Copper Age, from 3500 to 2300 BCE. The metal was initially used exclusively in its pure state but was later used in the production of other metal alloys.
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contact2020821 · Cu(H2O)6]2 + + 4Cl − ⇌ [CuCl4]2 − + 6H2O. Because the reaction is reversible, you get a mixture of colors due to both of the complex ions. The color of the tetrachlorocuprate (II) ion may also be described as olive-green or yellow. If you add water to the green solution, it returns to the blue color.
contactCopper futures extended hovered near $4.1 per pound in late March, the highest in three weeks, as expectations of strong demand and concerns of lower supply offset the sharp rebound for the greenback. Fresh data showed that copper demand in China rose by 13 percent year-on-year in February, supported by the increase in infrastructure
contact2021812 · The modern name copper first came into use around 1530. Properties: Copper has a melting point of 1083.4 +/- 0.2°C, boiling point of 2567°C, specific gravity of 8.96 (20°C), with a valence of 1 or 2. Copper
contact2022616 · Doses of up to 10 milligrams of copper daily are likely safe, but 1 gram (1,000 milligrams) or more of copper could result in toxicity symptoms, even leading to organ failure and death. 1. If you take too
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