C5102 R-1/...

C5102 R-1/...

C5102 R-O铜...

C5111 R-EH...

C5111 R-H铜...

C5111 R-1/...

C5111 R-1/...

C5111 R-O磷...

C4252 ESH铜...

C4252 SH铜合...

C4252 EH铜合...

C4252 H锡青铜

C4252 3/4H...

C4252 1/2H...

C2680 R-SH...

C2680 R-EH...

C2680 R-H黄...

C2680 R-1/...

C2680 R-1/...

C2680 R-O黄...

C2600 R-EH...

C2600 R-H铜...

C2600 R-1/...

C2600 R-1/...

C2600 R-O黄...

C1808 TM08...

C1808 TM04...

K88 R540铜合...

K88 R480铜合...

C19720 EH铜...