C19150/C19160/CuNi1Pb1P/K41
BFe10-1-1铁白铜管
BMn40-1.5锰白铜棒
C79200白铜合金材料
BAl13-3铝白铜棒
B30白铜棒B30白铜板B3..
C19150/C19160/..