日展公司主要经营的铜合金如下: 

紫铜类（纯铜）：T2.C1100.C11000.无氧铜TU1.C1020.C10200加磷脱氧铜TP2.C1220.C12200.

黄铜类，铜合金
H96.C2100.C21000.H90.C2200.C22000.H85.C2300.C23000.H80.C2400.C24000.H68A.C2680. C26200.H65.C2700.C26800.H62.C2720.C27400.

铅黄铜  HPb59-1.C3710.C37800.HPb59-2.C3771.C35300. HPb60-2.C3604.C36000.HPb63-3.C3560.C34500.HPb63-0.1.C34900.

铝黄铜HAi77-2.C6870.C68700. HAi60-1-1.C6782.C67000.HAi59-3-2.C67800.HAi66-6-3-2.C6872.

锡黄铜HSn62-1.HSn70-1AB.锰黄铜HMn58-2.C67400.HMn57-3-1.铁黄铜HFe59-1-1.C6782.C67820.硅黄铜HSi80-3.C69400.

青铜类：

锡青铜QSn4-3,QSn6.5-0.1.QSn7-0.2.C5212.C52100.QSn6.5-0.4.

铝青铜QAi9-2.C61000.QAi9-4.QAi10-3-1.5. C6161.C61900.QAi10--4-4.C6301.C63000.C63200.

硅青铜QSi3-1.C65500.C65800.QSi1-3.C64700.QSi1.8. 锰青铜QMn5.锆青铜QZr0.2-0.4.铬青铜QCr0.5.C18100.C18200.C18400.QCr1-2.

铬锆铜QCr1-0.15.C18150. 镉青铜QCd1.0.铍青铜QBe1.8.QBe2.0.白铜类：B19.B25.铁白铜BFe10-1--1.B111.C70600.BFe30--1-1.B111. C71500.

锌白铜BZn15-20.等。