久久精品aⅴ无码中文字字幕重口,蜜桃久久久电影,欧美最猛,日韩天天射

紫銅類（純銅）：T2.C1100.C11000.無氧銅TU1.C1020.C10200加磷脫氧銅TP2.C1220.C12200.
黃銅類，銅合金H96.C2100.C21000.H90.C2200.C22000.H85.C2300.C23000.H80.C2400.C24000.H68A.C2680. C26200.H65.C2700.C26800.H62.C2720.C27400.
鉛黃銅  HPb59-1.C3710.C37800.HPb59-2.C3771.C35300. HPb60-2.C3604.C36000.HPb63-3.C3560.C34500.HPb63-0.1.C34900.
鋁黃銅HAi77-2.C6870.C68700. HAi60-1-1.C6782.C67000.HAi59-3-2.C67800.HAi66-6-3-2.C6872.
錫黃銅HSn62-1.HSn70-1AB.HMn58-2.C67400.HMn57-3-1.鐵黃銅HFe59-1-1.C6782.C67820.硅黃銅HSi80-3.C69400.
青銅類：錫青銅QSn4-3,QSn6.5-0.1.QSn7-0.2.C5212.C52100.QSn6.5-0.4.
鋁青銅QAi9-2.C61000.QAi9-4.QAi10-3-1.5. C6161.C61900.QAi10--4-4.C6301.C63000.C63200.
硅青銅QSi3-1.C65500.C65800.QSi1-3.C64700.QSi1.8. 錳青銅QMn5.鋯青銅QZr0.2-0.4.鉻青銅QCr0.5.C18100.C18200.C18400.QCr1-2.
鉻鋯銅QCr1-0.15.C18150. 鎘青銅QCd10.鈹青銅QBe1.8.QBe2.0.白銅類：B19.B25.鐵白銅BFe10-1--1.B111.C70600.BFe30--1-1.B111. C71500.
鋅白銅BZn15-20.等。