C41000M,Y2,Y,O,1/4H,1/2H,3/4H,H,EH铜合金 面议 C41000SH,ESH,M20,H00,H01,H02,H03,H04铜合金 面议 C41000H06,H08,H10,H12,H14,H15,H16,H11,TM00铜合金 面议 C41000TM02,TM03,TM04,TM06,TM08,TM10,R420铜合金 面议 C41100TM02,TM03,TM04,TM06,TM08,TM10,R420铜合金 面议 C41100H08,H10,H12,H14,H15,H16,H11,TM00 铜合金 面议