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§÷®Æ¦WºÙ:TU2µL®ñ»É ¡@¼Ð·Ç¡G¡]GB/T 5231-2001)
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Cu+Ag:99.5
P:0.002
Bi¡G0.001
Sb:0.002
As:0.002
Fe:0.004
Ni:0.002
Pb:0.004
Sn:0.002
S:0.004
Zn:0.003
O:0.03