C1990-ESH铜合金带C7701P-3/4H C7701R-1/2H C7701P-1/2H C7701R-1/4H C7701P-1/4H C7701R-O C7701P-O C7541R-SH C7541P-SH C7541R-EH C7541P-EH C7541R-H C7541P-H C7541R-3/4H C7541P-3/4H C7541R-1/2H C7541P-1/2HC7541R-1/4H C7541P-1/4H C7541R-O C7541P-O C7521R-SH C7521P-SH C7521R-EH C7521P-EH C7521R-H C7521P-H C7521R-3/4H C7521P-3/4H C7521R-1/2H C7521P-1/2H C7521R-1/4H C7521P-1/4H C7521R-O C7521P-OC2801R-EH C2801P-EH C2801R-H C2801P-H C2801R-3/4H C2801P-3/4H C2801R-1/2H C2801P-1/2H C2801R-1/4H C2801P-1/4H C2801R-O C2801P-O C2680R-SH C2680P-SH C2680R-EH C2680P-EH C2680R-H C2680P-H C2680R-3/4H C2680P-3/4H C2680R-1/2H C2680P-1/2H C2680R-1/4H C2680P-1/4H C2680R-O C2680P-O C2600R-SH C2600P-SH C2600R-EH C2600P-EHC2600R-H C2600P-H C2600R-3/4H C2600P-3/4H C2600R-1/2H C2600P-1/2H C2600R-1/4H C2600P-1/4H C2600R-O C2600P-O C1220R-H C1220P-H C1220R-1/2H C1220P-1/2H C1220R-1/4H C1220P-1/4H C1201R-H C1201P-H C1201R-1/2H C1201P-1/2H C1201R-1/4H C1201P-1/4H C1201R-O C1201P-O C1100R-H C1100P-H C1100R-1/2H C1100P-1/2H C1100R-1/4H C1100P-1/4H C1100R-O C1100P-O C1020R-H C1020P-H C1020R-1/2H C1020P-1/2H C1020R-1/4H C1020P-1/4H C1020R-O C1020P-O
