BY1941-1

QSn4-3

BY1943-3-1

QSn6.5-0.1锡青铜

BY1946-1

QA110-3-1.5

BY1946-1-2

QAl9-2铝青铜

BY1946-2

QA110-3-1.5

BY1946-3

QA110-3-1.5

BY1948-2

QAl9-4锡青铜

BY1952-1

QSi1-3

BY1984-1

B19

BY1986-1

BMn40-1.5

BY1986-2

锰白铜BMn40-1.5

BY1986-3

BMn40-1.5

BY1991-1

BAl13-3

BY1991-1.

BAl6-1.5

BY2062-1-7

QSn6.5-0.4锡青铜

BYG1901-2 1

HSn95-1-1 锡黄铜

BYG1901-2 2

HSn95-1-1 锡黄铜

BYG1901-2 3

HSn95-1-1 锡黄铜

BYG1901-2 4

HSn95-1-1 锡黄铜

BYG1901-2 5

HSn95-1-1 锡黄铜