Sink. Tuesday , March 13th , 2018 - 01:19:10 AM
And then the national standard copper is by the national standard GB18145-2014 requirements of the copper. The national standard and metal pollutants precipitation standard requirements. The national standard copper again HPb59 copper (copper content ≥ 59%, the national market mainstream, and exports to most European countries Are the kind of copper.
Anyway, from the perspective of foreign trade, foreigners tend to use copper a little more, but the developed countries, customers will ask about copper lead content.
Copper lead, but also do not smell lead color change because the content of dissolved in the water is very low very low, the particular low depends on the content of its own and the use of time and water quality, and copper with copper ions, Leading the growth.
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