IS 1458

IS 1458 (铁路青铜铸锭和铸件)· IS (印度) · 5 种材料

名称	材料组别
G CuPb10Sn7 Class IV	铜	chevron_right
G CuPb15Sn7 Class III	铜	chevron_right
G CuSn6Zn2.5Pb2 Class II	铜	chevron_right
G CuSn7 Class I	铜	chevron_right
G CuSnPbZn5 Class V	铜	chevron_right